Bazel 8.4.0 RC1 still does not honor custom CA cert under /etc/pki

> A fix for this issue has been included in [Bazel 8.4.0 RC1](https://github.com/bazelbuild/bazel/releases/tag/8.4.0rc1). Please test out the release candidate and report any issues as soon as possible.
> If you're using Bazelisk, you can point to the latest RC by setting USE_BAZEL_VERSION=8.4.0rc1. Thanks!

_Originally posted by @iancha1992 in [#10349](https://github.com/bazelbuild/bazel/issues/10349#issuecomment-3211833369)_

Hi bazel team,

I updated my bazel to Bazel 8.4.0 RC1 but still got cert issue when downloading an internal package. I verified that my wget works for this.

```
jobuser [ ~/linfer-kernels ]$ bazel build --nobuild --enable_workspace --noenable_bzlmod
WARNING: Download from https://artifactory.corp.linkedin.com:8083/artifactory/TOOLS/com/linkedin/rules_linkedin_packaging/rules_linkedin_packaging/0.1.47/rules_linkedin_packaging-0.1.47.tar.gz failed: class javax.net.ssl.SSLHandshakeException (certificate_unknown) PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
INFO: Repository rules_linkedin_packaging instantiated at:
/home/jobuser/linfer-kernels/WORKSPACE:9:13: in
Repository rule http_archive defined at:
/home/jobuser/.cache/bazel/_bazel_jobuser/dc3b9882d7bff530240445d76889e19d/external/bazel_tools/tools/build_defs/repo/http.bzl:431:31: in
ERROR: /home/jobuser/.cache/bazel/_bazel_jobuser/dc3b9882d7bff530240445d76889e19d/external/bazel_tools/tools/build_defs/repo/http.bzl:155:45: An error occurred during the fetch of repository 'rules_linkedin_packaging':
Traceback (most recent call last):
File "/home/jobuser/.cache/bazel/_bazel_jobuser/dc3b9882d7bff530240445d76889e19d/external/bazel_tools/tools/build_defs/repo/http.bzl", line 155, column 45, in _http_archive_impl
download_info = ctx.download_and_extract(
Error in download_and_extract: java.io.IOException: Error downloading [https://artifactory.corp.linkedin.com:8083/artifactory/TOOLS/com/linkedin/rules_linkedin_packaging/rules_linkedin_packaging/0.1.47/rules_linkedin_packaging-0.1.47.tar.gz] to /home/jobuser/.cache/bazel/_bazel_jobuser/dc3b9882d7bff530240445d76889e19d/external/rules_linkedin_packaging/temp6179888529839676607/rules_linkedin_packaging-0.1.47.tar.gz: (certificate_unknown) PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
ERROR: Error computing the main repository mapping: no such package '@@rules_linkedin_packaging//rules': java.io.IOException: Error downloading [https://artifactory.corp.linkedin.com:8083/artifactory/TOOLS/com/linkedin/rules_linkedin_packaging/rules_linkedin_packaging/0.1.47/rules_linkedin_packaging-0.1.47.tar.gz] to /home/jobuser/.cache/bazel/_bazel_jobuser/dc3b9882d7bff530240445d76889e19d/external/rules_linkedin_packaging/temp6179888529839676607/rules_linkedin_packaging-0.1.47.tar.gz: (certificate_unknown) PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
```

Start by reproducing the failure with the Bazel command and custom certificate described in the issue, then inspect the repository download path in tools/build_defs/repo/http.bzl. Verify whether Bazel 8.4.0 RC1 honors the certificate under /etc/pki and whether the failing http_archive fetch succeeds; the issue needs a current reproduction before implementation work can be scoped.

Written by the indexing model from the issue text.