Bump swiftlang/github-workflows/.github/workflows/soundness.yml

Bumps [swiftlang/github-workflows/.github/workflows/soundness.yml](https://github.com/swiftlang/github-workflows) from 0.0.2 to 0.0.3.
- [Release notes](https://github.com/swiftlang/github-workflows/releases)
- [Commits](swiftlang/github-workflows@0.0.2...0.0.3)

---
updated-dependencies:
- dependency-name: swiftlang/github-workflows/.github/workflows/soundness.yml
  dependency-version: 0.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/pull_request.yml

@@ -21,7 +21,7 @@ jobs:
       enable_wasm_sdk_build: true
   soundness:
     name: Soundness
-    uses: swiftlang/github-workflows/.github/workflows/[email protected].2
+    uses: swiftlang/github-workflows/.github/workflows/[email protected].3
     with:
       api_breakage_check_enabled: false  # https://github.com/swiftlang/swift-syntax/issues/3010
       docs_check_additional_arguments: "--disable-parameters-and-returns-validation"