chore(deps): Bump actions/setup-node from 4.4.0 to 6.1.0

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 4.4.0 to 6.1.0.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@49933ea...395ad32)

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

PR: #368
Signed-off-by: dependabot[bot] <support@github.com>
Reviewed-by: Charalampos Mainas <cmainas@nubificus.co.uk>
Approved-by: Charalampos Mainas <cmainas@nubificus.co.uk>

Author: dependabot[bot]

.github/workflows/validate-files-and-commits.yml

@@ -34,7 +34,7 @@ jobs:
         with:
           ref: ${{ inputs.ref }}
 
-      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+      - uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0
         with:
           node-version: '22'
 
@@ -65,7 +65,7 @@ jobs:
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
 
       - name: Setup Node.js (for cspell)
-        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+        uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0
         with:
           node-version: '20'