GitHub workflow: add android compile

Author: kaloudis

.github/workflows/main.yml

@@ -48,6 +48,15 @@ jobs:
       - name: go compile
         run: make build
 
+      - name: gomobile install
+        run: go install golang.org/x/mobile/cmd/gomobile@v0.0.0-20220928052126-fa6bcb076835
+
+      - name: gomobile init
+        run: gomobile init
+
+      - name: android compile
+        run: make android
+
       - name: wasm compile
         run: make wasm