build(deps): bump actions/upload-artifact from 4.4.3 to 4.5.0

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4.4.3 to 4.5.0.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@b4b15b8...6f51ac0)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/postmerge.yaml

@@ -15,7 +15,7 @@ jobs:
       with:
         results_file: results.sarif
         results_format: sarif
-    - uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # v4.4.3
+    - uses: actions/upload-artifact@6f51ac03b9356f520e9adb1b1b7802705f340c2b # v4.5.0
       with:
         name: SARIF file
         path: results.sarif