Enable snapshot releases

.github/workflows/snapshot-releases.yaml

@@ -0,0 +1,33 @@
+name: Snapshot Releases
+
+on: [push] # for tests we push with every PR update
+# Only run on pushes to main:
+# on:
+#  push:
+#    branches:
+#      - main
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up JDK 8
+        uses: actions/setup-java@v3
+        with:
+          # We could consider bumping this for snapshots?
+          java-version: '8'
+          distribution: 'temurin'
+          server-id: ossrh
+          server-username: MAVEN_USERNAME
+          server-password: MAVEN_PASSWORD
+      - name: Publish package
+        env:
+          MAVEN_USERNAME: ${{ secrets.OSSRH_USERNAME }}
+          MAVEN_PASSWORD: ${{ secrets.OSSRH_TOKEN }}
+          # These don't work with java 8.
+          # Consider have something separate with more recent versions for the modules that don't support older versions?
+          included_modules: '-pl !code-execution-engines/langchain4j-code-execution-engine-graalvm-polyglot,!langchain4j-neo4j,!langchain4j-opensearch,!langchain4j-chroma'
+        # Notes:
+        #  - tests already run in a separate action
+        run: mvn --batch-mode deploy -DskipTests $included_modules