build(deps): firebase emulator 9.16.4 fixes auth token issues

[mikehardy]

Related firebase/firebase-tools#3674
Related firebase/firebase-tools#3671

Test Plan

ios and android e2e tests were both failing on this one, I got clean runs locally with the new release, if it passes in CI we're good

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[codecov]

Codecov Report

Merging #5595 (18c66ec) into master (97f9090) will decrease coverage by 0.05%.
The diff coverage is n/a.

❗ Current head 18c66ec differs from pull request most recent head 6e0d191. Consider uploading reports for the commit 6e0d191 to get more accurate results

@@             Coverage Diff              @@
##             master    #5595      +/-   ##
============================================
- Coverage     67.34%   67.30%   -0.04%     
+ Complexity      989      987       -2     
============================================
  Files           202      202              
  Lines          9708     9708              
  Branches       1514     1514              
============================================
- Hits           6537     6533       -4     
- Misses         2754     2757       +3     
- Partials        417      418       +1