Updated: curl/libcurl4/-devel/-doc, mingw64-x86_64-curl 8.1.2

[Cygwin curl Maintainer]

The following packages have been upgraded in the Cygwin distribution:

* curl			8.1.2
* libcurl4		8.1.2
* libcurl-devel		8.1.2
* libcurl-doc		8.1.2
* mingw64-x86_64-curl	8.1.2

Command line tool and Library supporting transferring files with
URL syntax, using FTP, FTPS, HTTP, HTTPS, SCP, SFTP, TFTP, TELNET, DICT, and
FILE, SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP form
based upload, proxies, cookies, user+password authentication (Basic,
Digest, NTLM, Negotiate...), file transfer resume, proxy tunneling and a
busload of other useful tricks.

For more information see the project home page:

	https://curl.se/

As there are multiple components and many changes each release please
see below or read /usr/share/doc/curl/RELEASE-NOTES after installation;
for complete details of changes since the previous Cygwin release see:

	/usr/share/doc/curl/CHANGES
or
	https://curl.se/changes.html


curl and libcurl 8.1.2		2023-05-30

Public curl releases:		 219
Command line options:		 251
curl_easy_setopt() options:	 302
Public functions in libcurl:	  91
Contributors:			2888

Planned upcoming removals include:

* gskit
* NSS
* support for space-separated NOPROXY patterns
* support for the original legacy mingw version 1

  See https://curl.se/dev/deprecate.html for details

This release includes the following known bugs:

* see docs/KNOWN_BUGS (https://curl.se/docs/knownbugs.html)

This release includes the following bugfixes:

* configure: quote the assignments for run-compiler
* configure: without pkg-config and no custom path, use -lnghttp2
* curl: cache the --trace-time value for a second
* http2: fix EOF handling on uploads with auth negotiation
* http3: send EOF indicator early as possible
* lib1560: verify more scheme guessing
* lib: remove unused functions, make single-use static
* libcurl.m4: remove trailing 'dnl' that causes this to break autoconf
* libssh: when keyboard-interactive auth fails, try password
* misc: fix spelling mistakes
* page-header: mention curl version and how to figure out current release
* page-header: minor wording polish in the URL segment
* scripts/singleuse.pl: add more API calls
* urlapi: remove superfluous host name check