l10n: Update Catalan translation

[jordimas]

Update of Catalan translation, not complete but it has more translations

Note: sorry for late, I was on holidays. Thanks

[github-actions]

Warnings found by git-po-helper in workflow #778:

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INFO [po/ca.po@21eaad5]	5543 translated messages, 142 fuzzy translations, 49 untranslated messages. 
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 
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WARNING [po/ca.po@21eaad5]	142 fuzzy string(s) in your 'po/XX.po' 
WARNING [po/ca.po@21eaad5]                           
WARNING [po/ca.po@21eaad5]	  > po/XX.po:570: this message needs to be reviewed by the translator 
WARNING [po/ca.po@21eaad5]	  > po/XX.po:624: this message needs to be reviewed by the translator 
WARNING [po/ca.po@21eaad5]	  > po/XX.po:637: this message needs to be reviewed by the translator 
WARNING [po/ca.po@21eaad5]	  > ...                   
WARNING [po/ca.po@21eaad5]                           
WARNING [po/ca.po@21eaad5]	49 untranslated string(s) in your 'po/XX.po' 
WARNING [po/ca.po@21eaad5]                           
WARNING [po/ca.po@21eaad5]	  > po/XX.po:1807: this message is untranslated 
WARNING [po/ca.po@21eaad5]	  > po/XX.po:4332: this message is untranslated 
WARNING [po/ca.po@21eaad5]	  > po/XX.po:4516: this message is untranslated 
WARNING [po/ca.po@21eaad5]	  > ...                   
WARNING [po/ca.po@21eaad5]                           

[jiangxin]

Fuzzy translations won't be compiled to the final mo file. I check your diff and cannot find any real translations. You can complete translations for Git 2.46.0 when next l10n window opens.