fix: use python3 one-liner to avoid YAML indentation break

Multi-line python3 -c blocks with unindented code end the YAML literal
block scalar prematurely; a single-line call avoids this.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: JasonLow8

.github/workflows/android-apk.yml

@@ -93,19 +93,7 @@ jobs:
           sed -i 's/minSdk [0-9]*/minSdk 26/g' "$BUILDGRADLE"
 
           # Add libtailscale AAR dependency + kotlinx-coroutines
-          # Insert lines right after the dependencies block opening
-          python3 -c "
-import re
-with open('$BUILDGRADLE') as f:
-    content = f.read()
-content = re.sub(
-    r'(dependencies\s*\{)',
-    r'\1\n    implementation fileTree(dir: \"libs\", include: [\"*.aar\", \"*.jar\"])\n    implementation \"org.jetbrains.kotlinx:kotlinx-coroutines-android:1.7.3\"',
-    content
-)
-with open('$BUILDGRADLE', 'w') as f:
-    f.write(content)
-"
+          python3 -c "import re; f='$BUILDGRADLE'; c=open(f).read(); c=re.sub(r'(dependencies\s*\{)', r'\1\n    implementation fileTree(dir: \"libs\", include: [\"*.aar\", \"*.jar\"])\n    implementation \"org.jetbrains.kotlinx:kotlinx-coroutines-android:1.7.3\"', c); open(f,'w').write(c)"
 
       - name: Add Tailscale permissions to AndroidManifest
         run: |