[Timestream] Parameter Groups

[Singha22]

Resolves #8791

[codecov]

Codecov Report

Attention: Patch coverage is 96.82540% with 4 lines in your changes missing coverage. Please review.

Project coverage is 92.82%. Comparing base (ec3224f) to head (e84c418).

Files with missing lines	Patch %	Lines
moto/timestreaminfluxdb/models.py	94.11%	4 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           master    #8814    +/-   ##
========================================
  Coverage   92.82%   92.82%            
========================================
  Files        1266     1266            
  Lines      110461   110586   +125     
========================================
+ Hits       102533   102654   +121     
- Misses       7928     7932     +4     

Flag	Coverage Δ
servertests	28.08% <0.00%> (-0.04%)	⬇️
unittests	92.80% <96.82%> (+<0.01%)	⬆️

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[bblommers]

Hi @Singha22! Thanks for the PR - please see my comments

[bblommers]

LGTM - thanks for addressing the comments @Singha22!