Prepare for "master" branch rename

Author: cowtowncoder

.github/workflows/main.yml

@@ -4,13 +4,15 @@ on:
     branches:
     - master
     - "2.18"
+    - 2.x
     paths-ignore:
     - "README.md"
     - "release-notes/*"
   pull_request:
     branches:
     - master
     - "2.18"
+    - 2.x
     paths-ignore:
     - "README.md"
     - "release-notes/*"
@@ -19,19 +21,18 @@ permissions:
 
 jobs:
   build:
-    runs-on: ${{ matrix.os }}
+    runs-on: 'ubuntu-22.04'
     strategy:
       fail-fast: false
       matrix:
         # 20-Dec-2022, tatu: Build now requires JDK 11; won't yet work with JDK 17 
         java_version: [ '11']
-        os: ['ubuntu-22.04']
     env:
       JAVA_OPTS: "-XX:+TieredCompilation -XX:TieredStopAtLevel=1"
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4.2.2
     - name: Set up JDK
-      uses: actions/setup-java@v3
+      uses: actions/setup-java@v4.6.0
       with:
         distribution: 'temurin'
         java-version: ${{ matrix.java_version }}
@@ -46,9 +47,9 @@ jobs:
       run: ./mvnw -B -q -ff -ntp verify
     - name: Extract project Maven version
       id: projectVersion
-      run: echo "version=$(./mvnw org.apache.maven.plugins:maven-help-plugin:3.3.0:evaluate -DforceStdout -Dexpression=project.version -q)" >>$GITHUB_OUTPUT
+      run: echo "version=$(./mvnw org.apache.maven.plugins:maven-help-plugin:3.5.1:evaluate -DforceStdout -Dexpression=project.version -q)" >>$GITHUB_OUTPUT
     - name: Deploy snapshot
-      if: github.event_name != 'pull_request' && matrix.java_version == '11' && endsWith(steps.projectVersion.outputs.version, '-SNAPSHOT')
+      if: ${{ github.event_name != 'pull_request' && matrix.java_version == '11' && endsWith(steps.projectVersion.outputs.version, '-SNAPSHOT') }}
       env:
         CI_DEPLOY_USERNAME: ${{ secrets.CI_DEPLOY_USERNAME }}
         CI_DEPLOY_PASSWORD: ${{ secrets.CI_DEPLOY_PASSWORD }}