nginx: Update to version 1.22.1

nginx: Update to version 1.22.1

- Update from version 1.21.6 to 1.22.1
- Update of rootfile not required
- Changelog
    Changes with nginx 1.22.1                                        19 Oct 2022
	    *) Security: processing of a specially crafted mp4 file by the
	       ngx_http_mp4_module might cause a worker process crash, worker
	       process memory disclosure, or might have potential other impact
	       (CVE-2022-41741, CVE-2022-41742).
    Changes with nginx 1.22.0                                        24 May 2022
	    *) 1.22.x stable branch.

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Reviewed-by: Michael Tremer <michael.tremer@ipfire.org>