Cherry picking for v0.23.7

[brimoor]

Cherry-picking more PRs for release

• [DOCS] Zero-Shot Image Classification Tutorial #4133
• Adding Non-Maximum Suppression (NMS) utility to fiftyone.utils.labels through perform_nms() #4160
• Merging NMS utility into develop #4166
• [DOCS] Document GCS and AWS env var credential options #4151

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 16.03%. Comparing base (39fd856) to head (101af66).
Report is 37 commits behind head on release/v0.23.7.

❗ Current head 101af66 differs from pull request most recent head a7a271b. Consider uploading reports for the commit a7a271b to get more accurate results

Additional details and impacted files

@@                 Coverage Diff                 @@
##           release/v0.23.7    #4165      +/-   ##
===================================================
- Coverage            16.03%   16.03%   -0.01%     
===================================================
  Files                  733      733              
  Lines                82016    82012       -4     
  Branches              1118     1118              
===================================================
- Hits                 13153    13152       -1     
+ Misses               68863    68860       -3     

Flag	Coverage Δ
app	16.03% <ø> (-0.01%)	⬇️

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