manifest: January 2023 Security update

Platform: android-13.0.0_r16 -> android-13.0.0_r20
gs101: android-13.0.0_r0.49 -> android-13.0.0_r0.54
gs201: android-13.0.0_r0.50 -> android-13.0.0_r0.55
Change-Id: I912a4493c81fe612d2d0527d476d5de37d05b74b
3 files changed
tree: 9784352fe13991cb0291632c15e2eb6bf662af9b
  1. snippets/
  2. default.xml
  3. README.mkdn