Remove parent.

.github/workflows/release.yaml

@@ -0,0 +1,32 @@
+name: Release
+
+"on":
+  workflow_dispatch: {}
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          token: ${{ secrets.GIT_ACTION_TOKEN }}
+      - name: git-configure
+        run: |
+            git config user.email "actions@github.com"
+            git config user.name "GitHub Actions"
+      - uses: actions/setup-java@v2
+        with:
+          distribution: temurin
+          java-version: 11
+          server-id: sonatype-nexus
+          server-username: SERVER_USERNAME
+          server-password: SERVER_PASSWORD
+          gpg-private-key: ${{ secrets.GPG_PRIVATE_KEY }}
+          gpg-passphrase: GPG_PASSPHRASE
+      - run: mvn -B dependency:go-offline -q
+      - run: mvn -B release:prepare
+      - run: mvn -B release:perform
+        env:
+          SERVER_USERNAME: ${{ secrets.SONATYPE_NEXUS_USERNAME }}
+          SERVER_PASSWORD: ${{ secrets.SONATYPE_NEXUS_PASSWORD }}
+          GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}