[MERGE WITH GIT FLOW] Hotfix/block user agents

[lbeaufort]

Summary (required)

• Resolves Add capability to block user agents #5749

Add capability to block specific user agents

[codecov]

Codecov Report

Attention: Patch coverage is 70.00000% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 85.61%. Comparing base (58ad873) to head (cde0616).

Files	Patch %	Lines
webservices/rest.py	57.14%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5751      +/-   ##
==========================================
- Coverage   85.63%   85.61%   -0.03%     
==========================================
  Files          81       81              
  Lines        8474     8482       +8     
==========================================
+ Hits         7257     7262       +5     
- Misses       1217     1220       +3     

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