message: Bump m4 regression test valid version
diff: @@ -63,7 +63,7 @@ languages:
  outputPath: ./output/python
  oldArgs:
  - --version:3.0.6371
  - - --use:@autorest/modelerfour@4.16.3-dev.1
  + - --use:@autorest/modelerfour@4.18.0-dev.1
  - --use:@autorest/python@5.5.0
  newArgs:
  - --version:3.0.6371
  @@ -75,7 +75,7 @@ languages:
  oldArgs:
  - --v3
  - --version:3.0.6371
  - - --use:@autorest/modelerfour@4.16.3-dev.1
  + - --use:@autorest/modelerfour@4.18.0-dev.1
  - --package-name:test-package
  - --title:TestClient
  - --use:@autorest/typescript@6.0.0-dev.20201208.1
  