curl and libcurl 7.75.1

 Public curl releases:         197
 Command line options:         237
 curl_easy_setopt() options:   285
 Public functions in libcurl:  85
 Contributors:                 2322

This release includes the following changes:

 o

This release includes the following bugfixes:

 o build: fix --disable-http-auth
 o build: fix --disable-dateparse [1]
 o OS400: update for CURLOPT_AWS_SIGV4 [2]
 o BUG-BOUNTY: removed the cooperation mention

This release includes the following known bugs:

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

This release would not have looked like this without help, code, reports and
advice from friends like these:

  Benbuck Nason, Daniel Stenberg, Firefox OS, Ray Satiro,
  (4 contributors)

References to bug reports and discussions on issues:

 [1] = https://curl.se/mail/lib-2021-02/0008.html
 [2] = https://curl.se/bug/?i=6560
