ci: Regenerate and verify the status codes file

in order to enforce congruence between it and its source csv.

Furthermore drop the generated file from rustfmt ignore
as it's apparently currently formatted.

.github/workflows/ci_verify_clean_status_codes.yml

@@ -0,0 +1,16 @@
+name: CI verify cleanly generated status codes
+'on':
+  workflow_call: null
+jobs:
+  status_codes:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout (GitHub)
+        uses: actions/checkout@v4
+      - name: Regenerate status codes
+        run: node gen_status_codes
+        working-directory: tools/schema/
+      - name: Format generated code
+        run: rustfmt lib/src/types/status_codes.rs
+      - name: Verify generated code matches committed code
+        run: git status --porcelain

.github/workflows/main.yml

@@ -33,3 +33,6 @@ jobs:
         run: cargo build --features test-vendored-openssl
       - name: Run tests
         run: cargo test --features test-vendored-openssl --verbose
+
+  verify-clean-status-codes:
+    uses: ./.github/workflows/ci_verify_clean_status_codes.yml

rustfmt.toml

@@ -3,5 +3,4 @@ ignore = [
     "server/src/address_space/generated",
     "types/src/node_ids.rs",
     "types/src/service_types",
-    "types/src/status_codes.rs",
 ]