PCRE2 external project broken

[jerinphilip]

WASM builds which require PCRE2 as source are failing.

          --- LOG END ---
          error: downloading 'ftp.pcre.org/pub/pcre/pcre2-10.36.tar.gz' failed
          status_code: 7
          status_string: "Couldn't connect to server"
          log:
          --- LOG BEGIN ---
            Trying 131.111.8.88...

They probably switched release mechanism, with releases now available at https://github.com/PhilipHazel/pcre2/releases, according to https://www.pcre.org/. Opening this issue since this affects the source here as well.