ci: Fix android build by updating actions

Author: lubux

.github/workflows/android.yml

@@ -9,7 +9,7 @@ on:
 jobs:
   build:
     name: Build library for Android with gomobile
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
 
     steps:
     - name: Set up JDK 1.8
@@ -18,7 +18,7 @@ jobs:
         java-version: 1.8
 
     - name: Set up Go 1.x
-      uses: actions/setup-go@v2
+      uses: actions/setup-go@v5
       with:
         go-version: ^1.16
       id: go