Kapp deploy command changing K8S ServiceAccount label value

**What steps did you take:**

1. Ran `kapp deploy -a --diff-run --diff-changes=true -f ./app.yaml --into-ns --namespace --default-label-scoping-rules=false`.

**What happened:**
The value of _**ServiceAccount**_ label was changed/converted when I ran `kapp deploy` command.

**Original manifest in K8S:**
```
apiVersion: v1
kind: ServiceAccount
metadata:
name: app-name
labels:
github.com/sha-short: "1b85fe5e"
...
```

**New manifest to be deployed in K8S:**
```
apiVersion: v1
kind: ServiceAccount
metadata:
name: app-name
labels:
github.com/sha-short: "934881e3"
...
```

The new value of _**github.com/sha-short**_ label is being changed/converted to "934881**000**" instead "934881**e3**".

**What did you expect:**
The _**github.com/sha-short**_ label continues using the label as defined in the manifest.

**Anything else you would like to add:**
If you change the final of the value for "e1", "e2", "e4", `kapp` command will change/convert to "0", "00", "0000" respectively.

**Environment:**

- kapp version (use `kapp --version`): 0.62.1
- OS (e.g. from `/etc/os-release`): MacOs 14.5 (23F79) and Ubuntu 22.04.4
- Kubernetes version (use `kubectl version`): v1.30.2

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