ci: Bump marocchino/validate-dependabot from 2 to 3 (#502)

Bumps [marocchino/validate-dependabot](https://github.com/marocchino/validate-dependabot) from 2 to 3.
- [Release notes](https://github.com/marocchino/validate-dependabot/releases)
- [Commits](marocchino/validate-dependabot@v2...v3)

---
updated-dependencies:
- dependency-name: marocchino/validate-dependabot
  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>

.github/workflows/dependabot-validation.yml

@@ -15,7 +15,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: marocchino/validate-dependabot@v2
+      - uses: marocchino/validate-dependabot@v3
         id: validate
         with:
           path: .github/dependabot.yaml