chore: checkpoint before Python removal

vendor/signal-hook-registry/target/package/tmp-registry/index/si/gn/signal-hook-registry

@@ -0,0 +1 @@
+{"name":"signal-hook-registry","vers":"1.4.8","deps":[{"name":"errno","req":">=0.2, <0.4","features":[],"optional":false,"default_features":true,"target":null,"kind":"normal","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"libc","req":"^0.2","features":[],"optional":false,"default_features":true,"target":null,"kind":"normal","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"signal-hook","req":"~0.3","features":[],"optional":false,"default_features":true,"target":null,"kind":"dev","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false}],"features":{},"features2":null,"cksum":"e447e9102ca6cb4241df2374221440f358b64867a67ede78627828356ff55ac7","yanked":null,"links":null,"rust_version":null,"v":2}