feat(gtm/CSP): Add img-src

[mojulia]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 4.11%. Comparing base (5b82d6e) to head (d2041bb).
Report is 12 commits behind head on 7.x-2.x.

Files with missing lines	Patch %	Lines
...gnion_tracking_gtm/campaignion_tracking_gtm.module	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             7.x-2.x    #341      +/-   ##
============================================
+ Coverage       4.05%   4.11%   +0.06%     
  Complexity      1986    1986              
============================================
  Files            275     274       -1     
  Lines          12309   12114     -195     
============================================
  Hits             499     499              
+ Misses         11810   11615     -195     

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