[PM] Add PackageInstaller CUJ test case (21/N)

Add PackageInstaller CUJ test cases into postsubmit in TEST_MAPPING

Flag: TEST_ONLY
Bug: 332323403
Test: atest -p frameworks/base/core/java/android/content/pm/TEST_MAPPING:postsubmit
Test: atest -p frameworks/base/services/core/java/com/android/server/pm/TEST_MAPPING:postsubmit
Test: atest -p frameworks/base/packages/PackageInstaller/TEST_MAPPING:postsubmit
Change-Id: I1945a256a79d30463db3af25473f57b0758c8f5d