Update crazy-max/ghaction-import-gpg action to v6 (#3315)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/version-bump.yml

@@ -29,7 +29,7 @@ jobs:
           secrets: "github-gpg-private-key, github-gpg-private-key-passphrase"
 
       - name: Import GPG key
-        uses: crazy-max/ghaction-import-gpg@d6f3f49f3345e29369fe57596a3ca8f94c4d2ca7 # v5.4.0
+        uses: crazy-max/ghaction-import-gpg@82a020f1f7f605c65dd2449b392a52c3fcfef7ef # v6.0.0
         with:
           gpg_private_key: ${{ steps.retrieve-secrets.outputs.github-gpg-private-key }}
           passphrase: ${{ steps.retrieve-secrets.outputs.github-gpg-private-key-passphrase }}