ci: add semantic release workflow

Author: damingerdai

.github/workflows/semantic-release.yml

@@ -0,0 +1,49 @@
+name: Actions Release
+
+on:
+  push:
+    tags:
+      - 'v**'
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v2
+      - name: Set up Maven Central Repo
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+          server-id: sonatype-nexus-staging
+          server-username: ${{ secrets.OSSRH_USER }}
+          server-password: ${{ secrets.OSSRH_PASSWORD }}
+          gpg-passphrase:  ${{ secrets.GPG_PASSWORD }}
+      - name: Publish to Maven Central Repo
+        uses: samuelmeuli/action-maven-publish@v1
+        with:
+          gpg_private_key: ${{ secrets.GPG_SECRET }}
+          gpg_passphrase: ${{ secrets.GPG_PASSWORD }}
+          nexus_username: ${{ secrets.OSSRH_USER }}
+          nexus_password: ${{ secrets.OSSRH_PASSWORD }}
+          maven_profiles: release
+
+  release:
+    needs: publish
+    name: Create Release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Create Release
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # This token is provided by Actions, you do not need to create your own token
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ github.ref }}
+          body: |
+            Please refer to [CHANGELOG.md](https://github.com/PowerBotKit/botbuilder-spring-boot/blob/main/CHANGELOG.md) for details.
+          draft: false
+          prerelease: false