ci: increase datagrid rightclick timeout/ reduce worker count

[ashtonG]

Ticket

ET-678

Description

This attempts to deflake the datagrid action pause tests by increasing the rightclick timeout. I'm skeptical that this will deflake because the error message on timeout says that it's performing the click action, meaning it's already located the element and it's visible and clickable.

In addition, we reduce the worker count by one to prevent further timeout issues stemming from the machine throttling.

Test Plan

No manual testing needed -- ci should be green.

Checklist

• Changes have been manually QA'd
• New features have been approved by the corresponding PM
• User-facing API changes have the "User-facing API Change" label
• Release notes have been added as a separate file under docs/release-notes/
  See Release Note for details.
• Licenses have been included for new code which was copied and/or modified from any external code

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 50.43%. Comparing base (02e302f) to head (84a50fa).
Report is 35 commits behind head on main.

❗ Current head 84a50fa differs from pull request most recent head db73fe1

Please upload reports for the commit db73fe1 to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9951      +/-   ##
==========================================
- Coverage   54.50%   50.43%   -4.08%     
==========================================
  Files        1252      943     -309     
  Lines      156668   128073   -28595     
  Branches     3600     3601       +1     
==========================================
- Hits        85396    64593   -20803     
+ Misses      71139    63347    -7792     
  Partials      133      133              

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