[CI][Java] Remove excluded unstable tests when building java-jars.

### Describe the bug, including details regarding any error messages, version, and platform.

When we are builiding java-jars we are currently using the following exclusions:
```
exclude_tests="${exclude_tests}|arrow-acero-asof-join-node-test"
exclude_tests="${exclude_tests}|arrow-acero-hash-join-node-test"
```
We should remove those once: https://github.com/apache/arrow/issues/36482 is solved.

### Component(s)

Continuous Integration, Java

Beginne damit, die java-jars-Build-Konfiguration zu finden, die exclude_tests zusammenstellt, und bestätige, dass die beiden Ausschlüsse noch vorhanden sind. Prüfe, ob Apache Arrow issue 36482 behoben ist, entferne dann die Ausschlüsse arrow-acero-asof-join-node-test und arrow-acero-hash-join-node-test und überprüfe den java-jars-Build.

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