Update crate asn1

Author: bors

as/n1/asn1

@@ -52,3 +52,4 @@
 {"name":"asn1","vers":"0.18.0","deps":[{"name":"asn1_derive","req":"^0.18.0","features":[],"optional":false,"default_features":true,"target":null,"kind":"normal"},{"name":"libc","req":"^0.2.11","features":[],"optional":false,"default_features":true,"target":null,"kind":"dev"}],"cksum":"3522623dbb7db59b34439c022ab0445a0257a62ad20d499da3a3507394708559","features":{"default":["std"],"std":[]},"yanked":false,"rust_version":"1.59.0"}
 {"name":"asn1","vers":"0.19.0","deps":[{"name":"asn1_derive","req":"^0.19.0","features":[],"optional":false,"default_features":true,"target":null,"kind":"normal"},{"name":"itoa","req":"^1.0.11","features":[],"optional":false,"default_features":true,"target":null,"kind":"normal"},{"name":"libc","req":"^0.2.11","features":[],"optional":false,"default_features":true,"target":null,"kind":"dev"}],"cksum":"18d97d0d2e60ad0595a73b82264dcd46c2f96769b0f555ae71c14122f0679f65","features":{"default":["std"],"std":[]},"yanked":false,"rust_version":"1.59.0"}
 {"name":"asn1","vers":"0.20.0","deps":[{"name":"asn1_derive","req":"^0.20.0","features":[],"optional":false,"default_features":true,"target":null,"kind":"normal"},{"name":"itoa","req":"^1.0.11","features":[],"optional":false,"default_features":true,"target":null,"kind":"normal"},{"name":"libc","req":"^0.2.11","features":[],"optional":false,"default_features":true,"target":null,"kind":"dev"}],"cksum":"2d8b84b4ea1de2bf1dcd2a759737ddb328fb6695b2a95eb7e44fed67e3406f32","features":{"default":["std"],"std":[]},"yanked":false,"rust_version":"1.59.0"}
+{"name":"asn1","vers":"0.21.0","deps":[{"name":"asn1_derive","req":"^0.21.0","features":[],"optional":false,"default_features":true,"target":null,"kind":"normal"},{"name":"itoa","req":"^1.0.11","features":[],"optional":false,"default_features":true,"target":null,"kind":"normal"},{"name":"libc","req":"^0.2.11","features":[],"optional":false,"default_features":true,"target":null,"kind":"dev"}],"cksum":"9c48ea2b435a08bc0fc63de853bda3d5dd1b794ce5f188edd036ad39a7c069d9","features":{"default":["std"],"std":[]},"yanked":false,"rust_version":"1.65.0"}