Bump crazy-max/ghaction-import-gpg from 5.3.0 to 6.0.0

Bumps [crazy-max/ghaction-import-gpg](https://github.com/crazy-max/ghaction-import-gpg) from 5.3.0 to 6.0.0.
- [Release notes](https://github.com/crazy-max/ghaction-import-gpg/releases)
- [Commits](crazy-max/ghaction-import-gpg@v5.3.0...v6.0.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/release.yml

@@ -33,7 +33,7 @@ jobs:
         name: Import GPG key
         id: import_gpg
         # see https://github.com/hashicorp/terraform-provider-scaffolding/issues/22
-        uses: crazy-max/ghaction-import-gpg@v5.3.0
+        uses: crazy-max/ghaction-import-gpg@v6.0.0
         with:
           # These secrets will need to be configured for the repository:
           gpg_private_key: ${{ secrets.GPG_PRIVATE_KEY }}