Replace test workflow with CI & Publish workflow

Supports tag-triggered Maven Central releases via the existing
release profile. Old test-only workflow removed.

Author: alexeid

.github/workflows/ci-publish.yml

@@ -0,0 +1,55 @@
+name: CI & Publish
+
+on:
+  push:
+    branches: [ master ]
+    tags: [ 'v*' ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 25 (Azul Zulu)
+        if: "!startsWith(github.ref, 'refs/tags/v')"
+        uses: actions/setup-java@v4
+        with:
+          distribution: zulu
+          java-version: '25'
+          cache: maven
+
+      - name: Set up JDK 25 (Azul Zulu) for Maven Central
+        if: startsWith(github.ref, 'refs/tags/v')
+        uses: actions/setup-java@v4
+        with:
+          distribution: zulu
+          java-version: '25'
+          cache: maven
+          server-id: central
+          server-username: CENTRAL_USERNAME
+          server-password: CENTRAL_TOKEN
+          gpg-private-key: ${{ secrets.GPG_PRIVATE_KEY }}
+          gpg-passphrase: GPG_PASSPHRASE
+
+      - name: Set release version from tag
+        if: startsWith(github.ref, 'refs/tags/v')
+        run: |
+          VERSION=${GITHUB_REF_NAME#v}
+          echo "Publishing version: $VERSION"
+          mvn versions:set -DnewVersion=$VERSION -DgenerateBackupPoms=false
+
+      - name: Build and test
+        run: mvn verify
+
+      - name: Publish to Maven Central
+        if: startsWith(github.ref, 'refs/tags/v')
+        run: mvn deploy -Prelease -DskipTests
+        env:
+          CENTRAL_USERNAME: ${{ secrets.CENTRAL_USERNAME }}
+          CENTRAL_TOKEN: ${{ secrets.CENTRAL_TOKEN }}
+          GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}