ci(deps): bump actions/cache from 5.0.5 to 6.1.0 (#450)

Bumps [actions/cache](https://github.com/actions/cache) from 5.0.5 to 6.1.0.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@27d5ce7...55cc834)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: 6.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/maven-dependency-check.yml

@@ -44,7 +44,7 @@ jobs:
         # The build redirects the local repo to .m2/repository (see
         # -Dmaven.repo.local in MAVEN_OPTS), so cache it at the location the
         # build actually uses rather than setup-java's default ~/.m2/repository.
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: .m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
@@ -57,7 +57,7 @@ jobs:
         # rate-limit-prone full NVD download into a quick delta update. The
         # unique per-run key always saves the freshly-updated DB; restore-keys
         # restores the most recent previous copy as the starting point.
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: .m2/repository/org/owasp/dependency-check-data
           key: dependency-check-data-${{ github.run_id }}