[otc/tools] ac5262: Update HOWTO-make-a-release.md to refer to OpenSSL...

[Richard Levitte]

  Branch: refs/heads/master
  Home:   https://github.openssl.org/otc/tools
  Commit: ac52620c78013ea0d75c729d0ce8dfa283a7fa69
      https://github.openssl.org/otc/tools/commit/ac52620c78013ea0d75c729d0ce8dfa283a7fa69
  Author: Richard Levitte <levitte at openssl.org>
  Date:   2022-06-13 (Mon, 13 Jun 2022)

  Changed paths:
    M HOWTO-make-a-release.md

  Log Message:
  -----------
  Update HOWTO-make-a-release.md to refer to OpenSSL's Github instance

openssl-git at git.openssl.org:openssl.git is no more.

Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/tools/pull/119)