[0xTaoZ]

Issue #, if available:

Closes #4744.

Description of changes:

Register E1155 against AWS::Logs::LogGroup.Name instead of AWS::EC2::Subnet.Id. Invalid log group names now receive E1155, and subnet IDs are no longer checked against the log group name pattern.

Add public lint API regressions for invalid and valid log group names and an invalid subnet ID. Adjust the NAT template finding count after removing the spurious format warning.

Validation: 2,975 tests and 24 subtests passed in the default suite (four data tests deselected). All 89 format-rule tests passed. Formatting, import ordering, static checks on the changed files, and diff whitespace checks passed.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.71%. Comparing base (fd17da4) to head (40fd019).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4745   +/-   ##
=======================================
  Coverage   94.71%   94.71%           
=======================================
  Files         439      439           
  Lines       15886    15886           
  Branches     3076     3076           
=======================================
  Hits        15046    15046           
  Misses        458      458           
  Partials      382      382           

Flag	Coverage Δ
unittests	94.71% <ø> (ø)

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