fix frontmatter for real this time

PiperOrigin-RevId: 820811548

Integrate LLVM at llvm/llvm-project@d28c07b7550a

Updates LLVM usage to match
[d28c07b7550a](llvm/llvm-project@d28c07b7550a)

PiperOrigin-RevId: 813490970

Merge pull request #2156 from j2kun:partition-op

PiperOrigin-RevId: 803179889

Bump heir_py to 0.0.2

After this PR lands, I'm going to test a release workflow from GH releases

PiperOrigin-RevId: 780571308