[GH Actions] Add back Delete some stuff to free up disk space step for Android workflows

Summary: Context: https://squadcal.org/chat/thread/256|5812488/ (just noticed new thread ID format?)

Test Plan: Will see what happens

Reviewers: ashoat, tomek, jon, marcin

Reviewed By: ashoat

Differential Revision: https://phab.comm.dev/D8717