Added publish action

.github/workflows/publish.yml

@@ -0,0 +1,35 @@
+# Publish to Maven Central
+
+name: publish
+
+on:
+  repository_dispatch:
+    types: manual-publish
+  release:
+    types: [ created ]
+
+jobs:
+  publish:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up JDK
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'adopt'
+          java-version: '17'
+          cache: 'gradle'
+
+      - name: Publish
+        run: |
+          chmod +x gradlew
+          ./gradlew publishToSonatype closeAndReleaseSonatypeStagingRepository
+        env:
+          ORG_GRADLE_PROJECT_nexusUsername: ${{ secrets.NEXUS_USERNAME }}
+          ORG_GRADLE_PROJECT_nexusPassword: ${{ secrets.NEXUS_PASSWORD }}
+          ORG_GRADLE_PROJECT_signingKey: ${{ secrets.SEER_GPG_SECRET_KEY }}
+          ORG_GRADLE_PROJECT_signingPassword: ${{ secrets.SEER_GPG_PASSWORD }}