Bump bandit from 1.8.6 to 1.9.1

Bumps [bandit](https://github.com/PyCQA/bandit) from 1.8.6 to 1.9.1.
- [Release notes](https://github.com/PyCQA/bandit/releases)
- [Commits](PyCQA/bandit@1.8.6...1.9.1)

---
updated-dependencies:
- dependency-name: bandit
  dependency-version: 1.9.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

linter-requirements.txt

@@ -1,4 +1,4 @@
-bandit==1.8.6
+bandit==1.9.1
 black==25.11.0
 flake8==7.3.0
 isort==7.0.0