fix(AuthAdapters): Do not revalidate auth data if hasn't changed

[flovilmart]

• Adds test for user PUT requests (updates) when possibly stale authData is passed (as iOS does)
• Provides a fix to skip validation when the AuthData hasn't changed on PUT either.

Fixes #3867

[codecov]

Codecov Report

Merging #3872 into master will decrease coverage by 1.71%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #3872      +/-   ##
==========================================
- Coverage   90.17%   88.45%   -1.72%     
==========================================
  Files         114      114              
  Lines        7550     7703     +153     
==========================================
+ Hits         6808     6814       +6     
- Misses        742      889     +147

Impacted Files	Coverage Δ
src/RestWrite.js	93.11% <100%> (-0.16%)	⬇️
...dapters/Storage/Postgres/PostgresStorageAdapter.js	79.01% <0%> (-16.45%)	⬇️
src/Controllers/DatabaseController.js	94.54% <0%> (+0.2%)	⬆️
src/Routers/UsersRouter.js	90.37% <0%> (+1.48%)	⬆️
src/Adapters/Cache/InMemoryCache.js	100% <0%> (+7.69%)	⬆️

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