Adding IT for custom transformation in new reverse replication template

[shreyakhajanchi]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 45.96%. Comparing base (09f68d2) to head (c3c3b88).
Report is 4 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2056      +/-   ##
============================================
+ Coverage     45.94%   45.96%   +0.01%     
- Complexity     3790     4125     +335     
============================================
  Files           850      851       +1     
  Lines         50762    50805      +43     
  Branches       5340     5343       +3     
============================================
+ Hits          23325    23351      +26     
- Misses        25744    25760      +16     
- Partials       1693     1694       +1     

Components	Coverage Δ
spanner-templates	67.57% <ø> (-0.01%)	⬇️
spanner-import-export	65.47% <ø> (-0.02%)	⬇️
spanner-live-forward-migration	76.30% <ø> (ø)
spanner-live-reverse-replication	77.25% <ø> (ø)
spanner-bulk-migration	86.87% <ø> (ø)

see 11 files with indirect coverage changes