screen: Update to version 4.9.1

screen: Update to version 4.9.1

- Update from version 4.9.0 to 4.9.1
- Update of rootfile
- Changelog
    4.9.1
	  * Support stop/parity bits on serial port (#23952)
	  * Add needed system headers in checks and return values
	     for implicit function declarations
	  * Fixes:
	    - Avoid zombies after shell exit (#25089)
	    - Missed signal sending permission check on failed
	       query messages (CVE-2023-24626)
	    - manpage fixes
	    - source code fixes during cleanup
	    - UTF-8 encoding can emit invalid UTF-8 sequences
	       for out of range unicode values (#62097)

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