Disable abi breakage check, license header check, and format check

Author: shahmishal

.github/workflows/pull_request.yml

@@ -9,4 +9,7 @@ jobs:
     name: Soundness
     uses: swiftlang/github-workflows/.github/workflows/soundness.yml@main
     with:
+      api_breakage_check_enabled: false
+      license_header_check_enabled: false
       license_header_check_project_name: "Swift.org"
+      format_check_enabled: false