feat: disableable rbac audit logging

[maxrussell]

Ticket

Description

I got annoyed with how noisy audit logging was, so I added a config for disabling it. Existing configs should work as they did previously, because leaving this unset (or setting it to false) keeps audit logging.

Additionally, I left a commented-out RBAC config in tools/devcluster.yaml so people can quickly toggle RBAC during development.

Test Plan

Audit logging should still happen unless it's explicitly disbled in config.

Checklist

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

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[maxrussell]

Heads up: I'll be OOO until Monday May 13, so no rush on reviewing this.

[jesse-amano-hpe]

I didn't rush on reviewing this, but then I almost forgot to come back to it -- apologies! Looks great though :)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 39.53%. Comparing base (893f7f5) to head (4d6ea34).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9343      +/-   ##
==========================================
- Coverage   46.08%   39.53%   -6.56%     
==========================================
  Files        1228     1053     -175     
  Lines      155915   143071   -12844     
  Branches     2440     2439       -1     
==========================================
- Hits        71853    56558   -15295     
- Misses      83871    86322    +2451     
  Partials      191      191              

Flag	Coverage Δ
harness	37.93% <ø> (-26.14%)	⬇️
web	38.24% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
agent/cmd/determined-agent/main.go	0.00% <ø> (ø)
agent/internal/options/options.go	27.77% <ø> (-1.32%)	⬇️
master/cmd/determined-master/main.go	0.00% <ø> (ø)
master/internal/config/authz_config.go	57.14% <ø> (ø)
master/internal/config/config.go	70.54% <ø> (-0.11%)	⬇️
master/internal/rbac/audit/audit.go	30.76% <ø> (ø)
master/pkg/logger/config.go	0.00% <ø> (ø)

... and 276 files with indirect coverage changes