fix(#7558)[webpack]: handle git errors gracefully and clearly

[ozyx]

Closes #7558

Describe your changes:

Make it clear that any git errors during build are non-fatal and can be ignored at the expense of version info. This happens when building from zipped source as it does not include the .git/ folder

All Submissions:

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• Is this a notable change that will require a special callout in the release notes? For example, will this break compatibility with existing APIs or projects that consume these plugins?

Author Checklist

• Changes address original issue?
• Tests included and/or updated with changes?
• Has this been smoke tested?
• Have you associated this PR with a type: label? Note: this is not necessarily the same as the original issue.
• Have you associated a milestone with this PR? Note: leave blank if unsure.
• Is this a breaking change to be called out in the release notes?
• Testing instructions included in associated issue OR is this a dependency/testcase change?

Reviewer Checklist

• Changes appear to address issue?
• Reviewer has tested changes by following the provided instructions?
• Changes appear not to be breaking changes?
• Appropriate automated tests included?
• Code style and in-line documentation are appropriate?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.18%. Comparing base (5fc5c13) to head (49906b8).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7562      +/-   ##
==========================================
+ Coverage   56.16%   56.18%   +0.01%     
==========================================
  Files         672      672              
  Lines       27112    27112              
  Branches     2635     2635              
==========================================
+ Hits        15227    15232       +5     
+ Misses      11560    11555       -5     
  Partials      325      325              

Flag	Coverage Δ
e2e-full	23.60% <ø> (ø)
e2e-stable	59.96% <ø> (ø)
unit	49.14% <ø> (+0.01%)	⬆️

see 5 files with indirect coverage changes

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