[PM] Add PackageInstaller CUJ test case (10/N) - Add check for the title of installer dialog - Update the label for checking the GPP dialog - Add the version code to the test apps and use the same label in all test apps. Flag: TEST_ONLY Bug: 332323025 Test: atest CtsPackageInstallerCUJTestCases (cherry picked from https://googleplex-android-review.googlesource.com/q/commit:52d71398ded664013ee6a65732064a9bb1629c64) Merged-In: I3ce5f87db59c6770fbe0e55dbec57b308fe4a347 Change-Id: I3ce5f87db59c6770fbe0e55dbec57b308fe4a347