Update to 1.46
- New upstream release 1.46
- It's 2021
- New attribute comment_str (RFC 4180-bis)
- New attribute skip_empty_rows (RFC 4180-bis)
- http → https in links in docs
- Fix several issues with auto-detecting \r as EOL
- Tested on perl-5.6.1 .. perl-5.32.1 and perl-5.33.8 (145)