Update git submodules

* Update prebuilts/rust from branch 'main'
  to 7bdbb6b8af6aa15a5b6a638cfa9a9ff49ad2f34d
  - Remove 1.76.0
    
    Bug: http://b/330185853
    Test: m rust
    Change-Id: If60d354154774e844541b28d405102c4d7a506f8
    
1 file changed