test_git_info.py: Allow ssh remote URL

[ianhinder]

See ScottishCovidResponse/SCRCIssueTracking#729. Allow ssh remote URL in test_git_info.py.

[codecov-commenter]

Codecov Report

Merging #102 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #102   +/-   ##
=========================================
  Coverage     76.70%   76.70%           
  Complexity      180      180           
=========================================
  Files            64       64           
  Lines          2211     2211           
  Branches         38       38           
=========================================
  Hits           1696     1696           
  Misses          483      483           
  Partials         32       32           

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