Group grpc transforms

[RustedBones]

Group grpc transform operations so they are nested inside a single block

[codecov]

Codecov Report

Merging #4879 (8e1ced1) into main (c62da3a) will increase coverage by 0.02%.
The diff coverage is 100.00%.

❗ Current head 8e1ced1 differs from pull request most recent head b0643d7. Consider uploading reports for the commit b0643d7 to get more accurate results

@@            Coverage Diff             @@
##             main    #4879      +/-   ##
==========================================
+ Coverage   62.84%   62.87%   +0.02%     
==========================================
  Files         282      282              
  Lines       10573    10581       +8     
  Branches      795      795              
==========================================
+ Hits         6645     6653       +8     
  Misses       3928     3928              

Impacted Files	Coverage Δ
...cala/com/spotify/scio/grpc/SCollectionSyntax.scala	100.00% <100.00%> (ø)

[RustedBones]

Only snyk check failing but there was no dependency changes.