Add SECURE-SERVER:READ capability to operations role

[zrhoffman]

This PR adds the SECURE-SERVER:READ capability to operations role.

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Which Traffic Control components are affected by this PR?

• Traffic Ops

What is the best way to verify this PR?

Start Traffic Ops, check the role for the SECURE-SERVER:READ capability

PR submission checklist

• This PR has tests
• This PR has documentation
• This PR has a CHANGELOG.md entry
• This PR DOES NOT FIX A SERIOUS SECURITY VULNERABILITY (see the Apache Software Foundation's security guidelines for details)

[codecov]

Codecov Report

Merging #7712 (d23b6ba) into master (48ec14e) will increase coverage by 35.82%.
The diff coverage is n/a.

@@              Coverage Diff              @@
##             master    #7712       +/-   ##
=============================================
+ Coverage     29.78%   65.61%   +35.82%     
  Complexity       98       98               
=============================================
  Files           804      323      -481     
  Lines         86263    12829    -73434     
  Branches        965      965               
=============================================
- Hits          25696     8418    -17278     
+ Misses        58426     4051    -54375     
+ Partials       2141      360     -1781     

Flag	Coverage Δ
golib_unit	?
grove_unit	?
t3c_unit	?
traffic_monitor_unit	?
traffic_ops_unit	?
traffic_portal_v2	74.39% <ø> (+0.01%)	⬆️
traffic_stats_unit	?
unit_tests	74.39% <ø> (+47.43%)	⬆️

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see 484 files with indirect coverage changes

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[shamrickus]

LGTM

• Appropriately handles the migration
• Adds it to the seeds