Use Gson built from source. am: 7ddb89d3d8 am: a7762b08e3 am: 5f3d39619e

Original change: https://android-review.googlesource.com/c/platform/external/caliper/+/2770178

Change-Id: Ife627ba77b50fe35a758aeeda2dcdc6fb74b0f2c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>