Bump crazy-max/ghaction-import-gpg from 4 to 5

Bumps [crazy-max/ghaction-import-gpg](https://github.com/crazy-max/ghaction-import-gpg) from 4 to 5.
- [Release notes](https://github.com/crazy-max/ghaction-import-gpg/releases)
- [Changelog](https://github.com/crazy-max/ghaction-import-gpg/blob/master/CHANGELOG.md)
- [Commits](crazy-max/ghaction-import-gpg@v4...v5)

---
updated-dependencies:
- dependency-name: crazy-max/ghaction-import-gpg
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/build.yml

@@ -79,7 +79,7 @@ jobs:
           python ./checker.py test
       - name: Import GPG signing key
         if: matrix.java == 17 && github.ref == 'refs/heads/main'
-        uses: crazy-max/ghaction-import-gpg@v4
+        uses: crazy-max/ghaction-import-gpg@v5
         with:
           gpg_private_key: ${{ secrets.GPG_SIGNING_KEY }}
           passphrase: ${{ secrets.GPG_SIGNING_KEY_PASSPHRASE }}