Add snapshot pipeline

.github/workflows/snapshot.yml

@@ -0,0 +1,52 @@
+
+# Publish a Snapshot Release
+name: Snapshot
+
+on:
+  push:
+    branches:
+    - 'develop'
+
+jobs:
+  build:
+
+    name: Publish snapshot
+    runs-on: ubuntu-latest
+
+    steps:
+
+    # ================================
+    # SHALLOW CLONE
+    # ================================
+    - name: Shallow clone
+      uses: actions/checkout@v3
+
+    # ================================
+    # SET UP JDK
+    # ================================
+    - name: Set up JDK
+      uses: actions/setup-java@v3
+      with:
+        distribution: 'zulu'
+        java-package: jdk
+        java-version: 21
+
+    # ================================
+    # EXPORT GRADLE PROJECT PROPERTIES
+    # ================================
+    - name: Export Gradle project properties
+      id: properties
+      run: './gradlew properties -q | grep ": " | sed "s/: /=/" >> "$GITHUB_OUTPUT"'
+
+    # ================================
+    # PUBLISH
+    # ================================
+    - name: Publish snapshot
+      if: endsWith(steps.properties.outputs.version, '-SNAPSHOT')
+      env:
+        ORG_GRADLE_PROJECT_sonatypeUsername: ${{ secrets.SONATYPE_USERNAME }}
+        ORG_GRADLE_PROJECT_sonatypePassword: ${{ secrets.SONATYPE_PASSWORD }}
+        ORG_GRADLE_PROJECT_sonatypeStagingProfileId: ${{ secrets.SONATYPE_STAGING_PROFILE_ID }}
+      uses: gradle/gradle-build-action@v2
+      with:
+        arguments: publish -Psnapshot --info --scan