[llvm] Add compiler-rt:* to .github/new-prs-labeler.yml [NFC] (PR #79872)

[Dmitry Vyukov via llvm-commits]

================
@@ -89,6 +119,16 @@ compiler-rt:scudo:
   - compiler-rt/lib/scudo/**
   - compiler-rt/test/scudo/**
 
+compiler-rt:tsan:
+  - compiler-rt/lib/tsan/**
----------------
dvyukov wrote:

There are also files that correspond to each of sanitizers in compiler-rt/include/sanitizer/

https://github.com/llvm/llvm-project/pull/79872