Bump ibm-db from 3.2.4 to 3.2.5 in /docker/ibm-db2 (#4708)

Bumps [ibm-db](https://github.com/ibmdb/python-ibmdb) from 3.2.4 to 3.2.5.
- [Release notes](https://github.com/ibmdb/python-ibmdb/releases)
- [Changelog](https://github.com/ibmdb/python-ibmdb/blob/master/CHANGES.md)
- [Commits](ibmdb/python-ibmdb@v3.2.4...v3.2.5)

---
updated-dependencies:
- dependency-name: ibm-db
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>