Create publish.yml

Add publish workflow

.github/workflows/publish.yml

@@ -0,0 +1,40 @@
+name: Bintray Publish
+
+on:
+    release:
+        types:
+            - created
+
+jobs:
+    build-on-windows:
+        runs-on: windows-latest
+        steps:
+            -   uses: actions/checkout@v2
+            -   name: Set up JDK 11
+                uses: actions/setup-java@v1
+                with:
+                    java-version: 11
+            -   name: Grant execute permission for gradlew
+                run: chmod +x gradlew
+            -   name: Gradle clean
+                run: ./gradlew clean
+            -   name: Gradle build
+                run: ./gradlew build 
+            -   name: Run release task
+                run: ./gradlew release -PbintrayUser=${{ secrets.BINTRAY_USER }} -PbintrayApiKey=${{ secrets.BINTRAY_KEY }}
+    build-on-macos:
+        runs-on: macos-latest
+        steps:
+            -   uses: actions/checkout@v2
+            -   name: Set up JDK 11
+                uses: actions/setup-java@v1
+                with:
+                    java-version: 11
+            -   name: Grant execute permission for gradlew
+                run: chmod +x gradlew
+            -   name: Gradle clean
+                run: ./gradlew clean
+            -   name: Gradle build
+                run: ./gradlew build
+            -   name: Run release task
+                run: ./gradlew release -PbintrayUser=${{ secrets.BINTRAY_USER }} -PbintrayApiKey=${{ secrets.BINTRAY_KEY }}