gapps: Use apktool to build RRO overlays

The following fields in the AndroidManifest.xml are different:

Built in AOSP-tree version:
android:compileSdkVersion="32"
android:compileSdkVersionCodename="12"
platformBuildVersionCode="32"
platformBuildVersionName="12"

Build with apktool version:
android:compileSdkVersion="23"
android:compileSdkVersionCodename="6.0-2438415"
platformBuildVersionCode="23"
platformBuildVersionName="6.0-2438415"

overlay/GmsOverlay/apktool.yml

@@ -0,0 +1,23 @@
+!!brut.androlib.apk.ApkInfo
+apkFileName: GmsOverlay.apk
+doNotCompress:
+- resources.arsc
+isFrameworkApk: false
+packageInfo:
+  forcedPackageId: '127'
+  renameManifestPackage: null
+resourcesAreCompressed: false
+sdkInfo:
+  minSdkVersion: '32'
+  targetSdkVersion: '32'
+sharedLibrary: false
+sparseResources: true
+unknownFiles: {}
+usesFramework:
+  ids:
+  - 1
+  tag: null
+version: 2.8.1
+versionInfo:
+  versionCode: '1'
+  versionName: '1.0'