Bump garak from 0.14.1 to 0.15.0 in /services/quarantine

Bumps [garak](https://github.com/NVIDIA/garak) from 0.14.1 to 0.15.0.
- [Release notes](https://github.com/NVIDIA/garak/releases)
- [Commits](NVIDIA/garak@v0.14.1...v0.15.0)

---
updated-dependencies:
- dependency-name: garak
  dependency-version: 0.15.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

services/quarantine/pyproject.toml

@@ -16,7 +16,7 @@ scan = [
     "modelaudit==0.2.42",
 ]
 garak = [
-    "garak==0.14.1",
+    "garak==0.15.0",
 ]
 
 [project.scripts]