fix(webserver): properly convert git:// urls to https://

[boxbeam]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 6 lines in your changes are missing coverage. Please review.

Project coverage is 56.89%. Comparing base (922536d) to head (c43dd9e).

Files	Patch %	Lines
ee/tabby-webserver/src/cron/github.rs	0.00%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1959      +/-   ##
==========================================
- Coverage   56.91%   56.89%   -0.02%     
==========================================
  Files         132      132              
  Lines       11757    11761       +4     
==========================================
  Hits         6691     6691              
- Misses       5066     5070       +4     

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