build(deps): bump google-api-core from 2.30.2 to 2.30.3

Bumps [google-api-core](https://github.com/googleapis/google-cloud-python) from 2.30.2 to 2.30.3.
- [Release notes](https://github.com/googleapis/google-cloud-python/releases)
- [Changelog](https://github.com/googleapis/google-cloud-python/blob/main/CHANGELOG.md)
- [Commits](googleapis/google-cloud-python@google-api-core-v2.30.2...google-api-core-v2.30.3)

---
updated-dependencies:
- dependency-name: google-api-core
  dependency-version: 2.30.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -9,7 +9,7 @@ distlib==0.4.0
 distro==1.9.0
 filelock==3.25.2
 google-ai-generativelanguage==0.6.15
-google-api-core==2.30.2
+google-api-core==2.30.3
 google-api-python-client==2.193.0
 google-auth==2.49.1
 google-auth-httplib2==0.3.1