Rollup merge of #67594 - oxalica:update-libc, r=Dylan-DPC
Rollup merge of #67594 - oxalica:update-libc, r=Dylan-DPC

Update libc to 0.2.66

cc @gnzlbg @alexcrichton

graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust,aidancully/rust,graydon/rust,graydon/rust,aidancully/rust