Update project name

Author: shahmishal

.github/workflows/pull_request.yml

@@ -12,4 +12,4 @@ jobs:
     name: Soundness
     uses: swiftlang/github-workflows/.github/workflows/soundness.yml@main
     with:
-      license_header_check_project_name: "Swift.org"
+      license_header_check_project_name: "Swift Numerics"