Strip quotes in storage emulator header boundaryId

[Yuangwang]

Description

Strip quotes in storage emulator header boundaryId since some gcs sdks send in additional quotes. Fixes part of #3953

Scenarios Tested

Manual testing with the setup described in #3953 and also added unit test for this specific case

[tonyjhuang]

Is the goal to eventually handle these test cases from #3953 as well?

multipart/related; boundary="===============2559276420576958297=="
multipart/related; boundary================2559276420576958297==
multipart/related; boundary=---------------------------974767299852498929531610575

[Yuangwang]

Is the goal to eventually handle these test cases from #3953 as well?

multipart/related; boundary="===============2559276420576958297=="
multipart/related; boundary================2559276420576958297==
multipart/related; boundary=---------------------------974767299852498929531610575

went over this offline, we're going to target the multipart/related; boundary="===============2559276420576958297==" case specifically for now since it is passed in like that in some gcs sdks. We might revisit other cases later.

[codecov-commenter]

Codecov Report

Merging #4825 (0196d55) into master (d446fff) will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #4825      +/-   ##
==========================================
- Coverage   57.73%   57.72%   -0.01%     
==========================================
  Files         287      287              
  Lines       18734    18735       +1     
  Branches     3699     3699              
==========================================
- Hits        10816    10815       -1     
- Misses       7032     7034       +2     
  Partials      886      886              

Impacted Files	Coverage Δ
src/emulator/storage/multipart.ts	95.12% <100.00%> (+0.12%)	⬆️
src/emulator/auth/state.ts	84.78% <0.00%> (-0.57%)	⬇️

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