l10n: Update Catalan translation

[jordimas]

l10n: Update Catalan translation

[github-actions]

Warnings found by git-po-helper in workflow #532:

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INFO [po/ca.po@f935735]	5609 translated messages. 
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WARNING [po/ca.po@f935735]	mismatched patterns: refs/tags/ 
WARNING [po/ca.po@f935735]	>> msgid: The <src> part of the refspec is a tag object. 
WARNING [po/ca.po@f935735]	Did you mean to create a new tag by pushing to 
WARNING [po/ca.po@f935735]	'%s:refs/tags/%s'?        
WARNING [po/ca.po@f935735]	>> msgstr: La part <src> de l'especificació de la referència és un objecte d'etiqueta. 
WARNING [po/ca.po@f935735]	Voleu crear una etiqueta pujant-la a «%srefs/tags/%s»? 
WARNING [po/ca.po@f935735]                           
WARNING [po/ca.po@f935735]	mismatched patterns: refs/tags/ 
WARNING [po/ca.po@f935735]	>> msgid: The <src> part of the refspec is a tree object. 
WARNING [po/ca.po@f935735]	Did you mean to tag a new tree by pushing to 
WARNING [po/ca.po@f935735]	'%s:refs/tags/%s'?        
WARNING [po/ca.po@f935735]	>> msgstr: La part <src> de l'especificació de la referència és un objecte d'arbre. 
WARNING [po/ca.po@f935735]	Voleu crear una etiqueta pujant-la a «%srefs/tags/%s»? 
WARNING [po/ca.po@f935735]                           
INFO checking commits: 1 passed.                  
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INFO downloading pot file from https://github.com/git-l10n/pot-changes/raw/pot/master/po/git.pot