Revert "remove workflows as it stoped working months ago due unknown reason"

This reverts commit 69d435d455.

.github/workflows/maven.yml

@@ -0,0 +1,32 @@
+# This workflow will build a Java project with Maven
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
+
+name: RedisBungee Build
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up JDK 11
+      uses: actions/setup-java@v2
+      with:
+        java-version: '8'
+        distribution: 'adopt'
+    - name: Build with Maven
+      run: mvn -B package --file pom.xml
+    - name: Download a Build Artifact
+      uses: actions/upload-artifact@v2.2.3
+      with:
+     # Artifact name
+       name: Redis_JAR
+     # Destination path
+       path: target/RedisBungee*