Run CI in parallel

Author: hannesa2

.github/workflows/android-build.yml

@@ -0,0 +1,17 @@
+name: Android Emulator test
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: set up JDK 1.8
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+      - name: Build with Gradle
+        run: ./gradlew build

.github/workflows/android-emulator.yml

@@ -13,8 +13,6 @@ jobs:
         uses: actions/setup-java@v1
         with:
           java-version: 1.8
-      - name: Build with Gradle
-        run: ./gradlew build
       - name: Android Emulator test
         uses: ReactiveCircus/android-emulator-runner@v2.8.0
         with: