feat: configure Github actions.

.github/workflows/maven-publish-snapshot.yml

@@ -0,0 +1,25 @@
+name: Publish snapshot to the Sonatype OSSRH
+
+on: workflow_dispatch
+
+jobs:
+  publish-snapshot:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up JDK 11
+        uses: actions/setup-java@v3
+        with:
+          java-version: "11"
+          distribution: "temurin"
+          cache: maven
+          server-id: ossrh
+          server-username: MAVEN_USERNAME
+          server-password: MAVEN_PASSWORD
+
+      - name: Publish snapshot package
+        run: mvn -B -U deploy
+        env:
+          MAVEN_USERNAME: ${{ secrets.OSSRH_USERNAME }}
+          MAVEN_PASSWORD: ${{ secrets.OSSRH_TOKEN }}

.github/workflows/maven-verify.yml

@@ -0,0 +1,22 @@
+name: Publish snapshot to the Sonatype OSSRH
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+
+jobs:
+  publish-snapshot:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up JDK 11
+        uses: actions/setup-java@v3
+        with:
+          java-version: "11"
+          distribution: "temurin"
+          cache: maven
+
+      - name: Verify
+        run: mvn -B -U verify