Add account list to request participant methods

[tester22]

Due to deprication of usernames in Jira Cloud the option to use accountid when updating requestparticipant is required.
https://developer.atlassian.com/cloud/jira/platform/deprecation-notice-user-privacy-api-migration-guide/

[codecov-commenter]

Codecov Report

Attention: 10 lines in your changes are missing coverage. Please review.

Comparison is base (c17bcb1) 34.45% compared to head (954e913) 34.42%.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1256      +/-   ##
==========================================
- Coverage   34.45%   34.42%   -0.04%     
==========================================
  Files          44       44              
  Lines        8108     8116       +8     
  Branches     1119     1123       +4     
==========================================
  Hits         2794     2794              
- Misses       5200     5208       +8     
  Partials      114      114              

Files	Coverage Δ
atlassian/service_desk.py	37.54% <16.66%> (-1.06%)	⬇️

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