040673bd44
The LLVM apt repository uses legacy SHA1 signatures which are now rejected by the stricter Sequoia PGP policy. This change extends the 'sha1.second_preimage_resistance' cutoff date to 9999-01-01 in the default Sequoia config. This effectively whitelists the legacy signature algorithm, preventing "OpenPGP signature verification failed" errors during `apt-get update`. See https://github.com/llvm/llvm-project/issues/153385.