fix(build): update node version to 16

[jayeshchoudhary]

fixes #12756

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 62.17%. Comparing base (59551e4) to head (b58129d).
Report is 298 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #12924      +/-   ##
============================================
+ Coverage     61.75%   62.17%   +0.42%     
+ Complexity      207      198       -9     
============================================
  Files          2436     2502      +66     
  Lines        133233   136390    +3157     
  Branches      20636    21106     +470     
============================================
+ Hits          82274    84803    +2529     
- Misses        44911    45302     +391     
- Partials       6048     6285     +237     

Flag	Coverage Δ
custom-integration1	<0.01% <ø> (-0.01%)	⬇️
integration	<0.01% <ø> (-0.01%)	⬇️
integration1	<0.01% <ø> (-0.01%)	⬇️
integration2	0.00% <ø> (ø)
java-11	35.16% <ø> (-26.55%)	⬇️
java-21	62.05% <ø> (+0.43%)	⬆️
skip-bytebuffers-false	62.14% <ø> (+0.39%)	⬆️
skip-bytebuffers-true	62.04% <ø> (+34.31%)	⬆️
temurin	62.17% <ø> (+0.42%)	⬆️
unittests	62.17% <ø> (+0.42%)	⬆️
unittests1	46.75% <ø> (-0.14%)	⬇️
unittests2	27.93% <ø> (+0.19%)	⬆️

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[tibrewalpratik17]

@jayeshchoudhary does this patch change the way npm fetches and auth checks during builds.
After this change, I am getting this error while building from local:

npm http fetch POST 403 https://unpm.uberinternal.com/-/npm/v1/security/advisories/bulk 1705ms

Reverting this change locally allows me to build successfully again.

We usually remove our token during builds using:

USSO_TOKEN=$(usso -ussh unpm.uberinternal.com -print 2> /dev/null)
    TOKEN=$(echo -n "ignored:$USSO_TOKEN" | base64)
    echo "//unpm.uberinternal.com/:_auth=$TOKEN" >> ~/.npmrc