Merge pull request #1026 from JohnTitor/branch-rename-libc

Update metadata of libc repo

Author: rylev

repos/rust-lang/libc.toml

@@ -3,12 +3,11 @@ name = 'libc'
 description = 'Raw bindings to platform APIs for Rust'
 bots = [
     'bors',
-    'highfive',
     'rustbot',
 ]
 
 [access.teams]
 crate-maintainers = 'maintain'
 
 [[branch-protections]]
-pattern = 'master'
+pattern = 'main'