community/libxmlb: upgrade to 0.3.21

Maintenance update:

Version 0.3.21
~~~~~~~~~~~~~~
Released: 2024-10-15

Bugfixes:
 - Check for corrupt XbSiloNode values in a smarter way (Richard Hughes)

Version 0.3.20
~~~~~~~~~~~~~~
Released: 2024-10-14

Bugfixes:
 - Do not always strip literal text (Richard Hughes)
 - Do not assume .txt files are application/xml (Richard Hughes)
 - Fix a crash when loading a corrupt XMLb store (Richard Hughes)
 - Fix writing files on Windows (Richard Hughes)

added 2 commits

• 0f0a4825 - 1 commit from branch alpine:master
• 07941608 - community/libxmlb: upgrade to 0.3.21

Compare with previous version

merged