fix(repo): sdk spec tests should run only test files (winglang#4569)

## Checklist
fixes failed main build:  https://github.com/winglang/wing/actions/runs/6546323860
(Tries to run a non test file)

- [x] Title matches [Winglang's style guide](https://www.winglang.io/contributing/start-here/pull_requests#how-are-pull-request-titles-formatted)
- [x] Description explains motivation and solution
- [ ] Tests added (always)
- [ ] Docs updated (only required for features)
- [ ] Added `pr/e2e-full` label if this feature requires end-to-end testing

*By submitting this pull request, I confirm that my contribution is made under the terms of the [Wing Cloud Contribution License](https://github.com/winglang/wing/blob/main/CONTRIBUTION_LICENSE.md)*.

.github/workflows/tf-aws-test.yml

@@ -136,12 +136,12 @@ jobs:
             if  ${{ env.MANUAL == 'true' }}
             then
               pnpm install
-              pnpm wing test -t tf-aws ${{ matrix.test.directory }}/*.w
+              pnpm wing test -t tf-aws ${{ matrix.test.directory }}/*.test.w
             elif ${{ env.LOCAL_BUILD == 'false'}}
             then 
-              wing test -t tf-aws ${{ matrix.test.directory }}/*.w
+              wing test -t tf-aws ${{ matrix.test.directory }}/*.test.w
             else
-            ./localwing/node_modules/.bin/wing test -t tf-aws ${{ matrix.test.directory }}/*.w
+            ./localwing/node_modules/.bin/wing test -t tf-aws ${{ matrix.test.directory }}/*.test.w
             fi
 
       - name: Output Terraform log