[monitor] Add restricted roles to update

[api-clients-generation-pipeline]

See DataDog/datadog-api-spec#798

[nmuesch]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[codecov-io]

Codecov Report

Merging #187 (bfbeca9) into master (89897ce) will increase coverage by 0.00%.
The diff coverage is 40.00%.

@@           Coverage Diff           @@
##           master     #187   +/-   ##
=======================================
  Coverage   39.02%   39.02%           
=======================================
  Files         798      798           
  Lines       68504    68508    +4     
=======================================
+ Hits        26735    26737    +2     
- Misses      41769    41771    +2     

Impacted Files	Coverage Δ
...dog_api_client/v1/models/monitor_update_request.rb	37.83% <40.00%> (+0.33%)	⬆️

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 40.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 39.02%. Comparing base (89897ce) to head (bfbeca9).
Report is 1965 commits behind head on master.

Files with missing lines	Patch %	Lines
...dog_api_client/v1/models/monitor_update_request.rb	40.00%	3 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #187   +/-   ##
=======================================
  Coverage   39.02%   39.02%           
=======================================
  Files         798      798           
  Lines       68504    68508    +4     
=======================================
+ Hits        26735    26737    +2     
- Misses      41769    41771    +2     

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