Update gradle.yml

.github/workflows/gradle.yml

@@ -0,0 +1,22 @@
+name: Java CI
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up JDK 1.8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 1.8
+    - name: Build with Gradle & Upload
+      run: ./gradlew clean bintrayUpload
+      env:
+        BINTRAY_USER: shedaniel
+        OSS_TOKEN: shedaniel
+        BINTRAY_KEY: $${{ secrets.BINTRAY_KEY }}
+        OSS_PASS: $${{ secrets.OSS_PASS }}