Disable "unable to get git repo" when none exists.

[stephenwithav]

Closes #2493.

[ChristopherHX]

I overal agree about silencing this warning, in my use of act this code is effectively disabled.

Neutral, I approve if another maintainer approves

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.43%. Comparing base (5a80a04) to head (77cd756).
Report is 182 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #2495       +/-   ##
===========================================
+ Coverage   61.56%   74.43%   +12.86%     
===========================================
  Files          53       72       +19     
  Lines        9002    11056     +2054     
===========================================
+ Hits         5542     8229     +2687     
+ Misses       3020     2191      -829     
- Partials      440      636      +196     

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[ChristopherHX]

LGTM

[mergify]

This pull request has been removed from the queue for the following reason: pull request branch update failed.

The pull request can't be updated

You should look at the reason for the failure and decide if the pull request needs to be fixed or if you want to requeue it.

If you want to requeue this pull request, you need to post a comment with the text: @mergifyio requeue