Why not? Your changes are limited to Android and so far no Android users have complained.
The current post-commit community CI simply compiles the Android stdlib on linux and then runs the compiler validation suite in host test mode, ie skipping the 1k executable tests that would need to run on Android.
It has been broken for more than a month because it doesn't have a prebuilt Swift toolchain installed, and Swift trunk is currently broken when bootstrapping on linux, pretty much requiring a prebuilt host toolchain at this point.
I plan to get that running on the official CI by installing a prebuilt Swift toolchain for linux, then expanding it to run the executable tests in the Android emulator, before getting it to cross-compile the corelibs like libdispatch and foundation for Android also, the last of which my daily Android CI has been doing for years.
We can use that post-commit CI config for a pre-commit CI when we feel it's ready.