Update pull_request.yml format

Author: shahmishal

.github/workflows/pull_request.yml

@@ -9,14 +9,14 @@ jobs:
     name: Test
     uses: swiftlang/github-workflows/.github/workflows/swift_package_test.yml@main
   soundness:
-        name: Soundness
-        uses: swiftlang/github-workflows/.github/workflows/soundness.yml@main
-        with:
-            api_breakage_check_enabled: true
-            broken_symlink_check_enabled: true
-            docs_check_enabled: true
-            format_check_enabled: true
-            license_header_check_enabled: false
-            license_header_check_project_name: "Swift.org"
-            shell_check_enabled: true
-            unacceptable_language_check_enabled: true
+    name: Soundness
+    uses: swiftlang/github-workflows/.github/workflows/soundness.yml@main
+    with:
+      api_breakage_check_enabled: true
+      broken_symlink_check_enabled: true
+      docs_check_enabled: true
+      format_check_enabled: true
+      license_header_check_enabled: false
+      license_header_check_project_name: "Swift.org"
+      shell_check_enabled: true
+      unacceptable_language_check_enabled: true