Failed Publishing GitHub checks - Only 65535 characters are allowed; 65537 were supplied.

### Jenkins and plugins versions report

Environment

```text
Jenkins: 2.401.1
OS: Linux - 5.15.0-1026-aws
Java: 11.0.19 - Eclipse Adoptium (OpenJDK 64-Bit Server VM)
---
ansicolor:1.0.2
antisamy-markup-formatter:159.v25b_c67cd35fb_
apache-httpcomponents-client-4-api:4.5.14-150.v7a_b_9d17134a_5
authentication-tokens:1.53.v1c90fd9191a_b_
authorize-project:1.7.0
aws-credentials:191.vcb_f183ce58b_9
aws-java-sdk:1.12.447-382.vda_68e2007233
aws-java-sdk-cloudformation:1.12.447-382.vda_68e2007233
aws-java-sdk-codebuild:1.12.447-382.vda_68e2007233
aws-java-sdk-ec2:1.12.447-382.vda_68e2007233
aws-java-sdk-ecr:1.12.447-382.vda_68e2007233
aws-java-sdk-ecs:1.12.447-382.vda_68e2007233
aws-java-sdk-efs:1.12.447-382.vda_68e2007233
aws-java-sdk-elasticbeanstalk:1.12.447-382.vda_68e2007233
aws-java-sdk-iam:1.12.447-382.vda_68e2007233
aws-java-sdk-kinesis:1.12.447-382.vda_68e2007233
aws-java-sdk-logs:1.12.447-382.vda_68e2007233
aws-java-sdk-minimal:1.12.447-382.vda_68e2007233
aws-java-sdk-sns:1.12.447-382.vda_68e2007233
aws-java-sdk-sqs:1.12.447-382.vda_68e2007233
aws-java-sdk-ssm:1.12.447-382.vda_68e2007233
basic-branch-build-strategies:71.vc1421f89888e
blueocean:1.27.4
blueocean-bitbucket-pipeline:1.27.4
blueocean-commons:1.27.4
blueocean-config:1.27.4
blueocean-core-js:1.27.4
blueocean-dashboard:1.27.4
blueocean-display-url:2.4.2
blueocean-events:1.27.4
blueocean-git-pipeline:1.27.4
blueocean-github-pipeline:1.27.4
blueocean-i18n:1.27.4
blueocean-jwt:1.27.4
blueocean-personalization:1.27.4
blueocean-pipeline-api-impl:1.27.4
blueocean-pipeline-editor:1.27.4
blueocean-pipeline-scm-api:1.27.4
blueocean-rest:1.27.4
blueocean-rest-impl:1.27.4
blueocean-web:1.27.4
bootstrap5-api:5.3.0-1
bootstraped-multi-test-results-report:2.2.1
bouncycastle-api:2.28
branch-api:2.1105.v472604208c55
build-monitor-plugin:1.14-717.v3efcdffe8d58
build-pipeline-plugin:1.5.8
caffeine-api:3.1.6-115.vb_8b_b_328e59d8
checks-api:2.0.0
cloudbees-bitbucket-branch-source:805.v7f97d29dc0f5
cloudbees-folder:6.815.v0dd5a_cb_40e0e
command-launcher:90.v669d7ccb_7c31
commons-lang3-api:3.12.0-36.vd97de6465d5b_
commons-text-api:1.10.0-36.vc008c8fcda_7b_
config-file-provider:938.ve2b_8a_591c596
credentials:1254.vb_96f366e7b_a_d
credentials-binding:604.vb_64480b_c56ca_
dark-theme:315.va_22e7d692ea_a
dashboard-view:2.487.vcf0ff9008a_c0
dependency-check-jenkins-plugin:5.4.0
display-url-api:2.3.7
docker-commons:419.v8e3cd84ef49c
docker-workflow:563.vd5d2e5c4007f
durable-task:507.v050055d0cb_dd
echarts-api:5.4.0-5
extended-choice-parameter:373.v1a_ecea_fdf2a_a_
favorite:2.4.2
font-awesome-api:6.4.0-1
git:5.0.2
git-client:4.3.0
github:1.37.1
github-api:1.314-431.v78d72a_3fe4c3
github-branch-source:1703.vd5a_2b_29c6cdc
github-checks:545.v79a_a_68b_ca_682
github-oauth:0.39
global-build-stats:269.v214f74360b_3a_
gradle:2.7
handy-uri-templates-2-api:2.1.8-22.v77d5b_75e6953
htmlpublisher:1.31
instance-identity:142.v04572ca_5b_265
ionicons-api:56.v1b_1c8c49374e
jackson2-api:2.15.1-344.v6eb_55303dc3e
jakarta-activation-api:2.0.1-3
jakarta-mail-api:2.0.1-3
javax-activation-api:1.2.0-6
javax-mail-api:1.6.2-8
jaxb:2.3.8-1
jdk-tool:63.v62d2fd4b_4793
jenkins-design-language:1.27.4
jjwt-api:0.11.5-77.v646c772fddb_0
jquery:1.12.4-1
jquery3-api:3.7.0-1
junit:1207.va_09d5100410f
kubernetes:3937.vd7b_82db_e347b_
kubernetes-client-api:6.4.1-215.v2ed17097a_8e9
kubernetes-credentials:0.10.0
leastload:3.0.0
mailer:457.v3f72cb_e015e5
material-theme:0.5.2-rc100.6121925fe229
matrix-auth:3.1.8
matrix-project:789.v57a_725b_63c79
metrics:4.2.18-438.v0ede325a_4c68
mina-sshd-api-common:2.10.0-69.v28e3e36d18eb_
mina-sshd-api-core:2.10.0-69.v28e3e36d18eb_
nodejs:1.6.0
okhttp-api:4.10.0-132.v7a_7b_91cef39c
parameterized-trigger:2.45
pipeline-aws:1.43
pipeline-build-step:491.v1fec530da_858
pipeline-graph-analysis:202.va_d268e64deb_3
pipeline-groovy-lib:656.va_a_ceeb_6ffb_f7
pipeline-input-step:468.va_5db_051498a_4
pipeline-milestone-step:111.v449306f708b_7
pipeline-model-api:2.2133.ve46a_6113dfc3
pipeline-model-definition:2.2133.ve46a_6113dfc3
pipeline-model-extensions:2.2133.ve46a_6113dfc3
pipeline-npm:49.v9c8598493533
pipeline-rest-api:2.32
pipeline-stage-step:305.ve96d0205c1c6
pipeline-stage-tags-metadata:2.2133.ve46a_6113dfc3
pipeline-stage-view:2.32
pipeline-utility-steps:2.15.4
plain-credentials:143.v1b_df8b_d3b_e48
plugin-util-api:3.3.0
preSCMbuildstep:71.v1f2990a_37e27
pubsub-light:1.17
scm-api:672.v64378a_b_20c60
script-security:1251.vfe552ed55f8d
simple-theme-plugin:160.vb_76454b_67900
slack:664.vc9a_90f8b_c24a_
snakeyaml-api:1.33-95.va_b_a_e3e47b_fa_4
solarized-theme:0.1
sonar:2.15
sse-gateway:1.26
ssh-agent:333.v878b_53c89511
ssh-credentials:305.v8f4381501156
sshd:3.249.v2dc2ea_416e33
structs:324.va_f5d6774f3a_d
test-results-analyzer:0.4.0
theme-manager:193.vcef22f6c5f2b_
timestamper:1.25
token-macro:359.vb_cde11682e0c
trilead-api:2.84.v72119de229b_7
uno-choice:2.6.5
variant:59.vf075fe829ccb
workflow-aggregator:596.v8c21c963d92d
workflow-api:1213.v646def1087f9
workflow-basic-steps:1017.vb_45b_302f0cea_
workflow-cps:3673.v5b_dd74276262
workflow-durable-task-step:1247.v7f9dfea_b_4fd0
workflow-job:1308.v58d48a_763b_31
workflow-multibranch:746.v05814d19c001
workflow-scm-step:408.v7d5b_135a_b_d49
workflow-step-api:639.v6eca_cd8c04a_a_
workflow-support:839.v35e2736cfd5c
```

### What Operating System are you using (both controller, and any agents involved in the problem)?

Jenkins controller runs as a pod in K8s cluster with agents being managed ad-hoc via Kubernetes plugin

### Reproduction steps

1. We have a react native pipeline that uses a container with a full Android Toolchain that allows us to run `./gradlew --no-daemon -PreactNativeArchitectures=x86_64 assembleDebug`
2. PR build fails (expected) and generates a very long console output
3. GitHub Check plugin fails to upload check to GitHub

### Expected Results

GitHub Checks plugin manages to truncate the output and upload a check to GitHub

### Actual Results

Final `Jenkins` check is not being published to GitHub due to:
```
ERROR: script returned exit code 1
[GitHub Checks] Failed Publishing GitHub checks: org.kohsuke.github.HttpException: {"message":"Invalid request.\n\nOnly 65535 characters are allowed; 65537 were supplied.","documentation_url":"https://docs.github.com/rest/reference/checks#update-a-check-run"}
```

### Anything else?

I find it interesting that supplier characters (65537) are only +2 from the max allowed (65535).
It would be quite a coincidence that output of my build exceeds the allowed characters by just 2.

I read somewhere that Check plugin is using `TruncatedString` to ensure that uploaded string does not exceed the max allowed value - I wonder if there is so sort of mistake in the truncation logic, which then results in truncated string to by bigger by 2 from the allowed value.

Note: for now I've used "Suppress log output in checks" of my GitHub Organization folder to avoid the issue