CI: Check generated docs on Mac

Test that the docs generated on Mac match the docs in the commit

Author: ddustin

.github/workflows/macos.yaml

@@ -52,6 +52,10 @@ jobs:
           uv run ./configure --disable-valgrind --disable-compat
           uv run make
 
+      - name: Build check generated docs
+        run: |
+          uv run make check-gen-updated
+
       - name: Start bitcoind in regtest mode
         run: |
           bitcoind -regtest -daemon