clamav: Update to version 1.4.2

clamav: Update to version 1.4.2

- Update from version 1.4.1 to 1.4.2
- Update of rootfile
- Changelog
    1.4.2
	- [CVE-2025-20128](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-20128):
	   Fixed a possible buffer overflow read bug in the OLE2 file parser that could
	   cause a denial-of-service (DoS) condition.
	  This issue was introduced in version 1.0.0 and affects all currently
	   supported versions. It will be fixed in:
		  - 1.4.2
		  - 1.0.8
	  Thank you to OSS-Fuzz for identifying this issue.

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>