Don't set pubkey_info directly in checkpubkey_line This makes it safe to use from fuzzer-pubkey without leaking the value since the cleanup isn't called

attrs==21.2.0
iniconfig==1.1.1
packaging==21.0
pluggy==1.0.0
py==1.10.0
pyparsing==2.4.7
pytest==6.2.5
toml==0.10.2
psutil==5.9.0