Add FAST to Python linting check (#3026)

* turn on Python linting for fast
* remove secops.py

---------

Co-authored-by: bruzzechesse <bruzzechesse@google.com>

.github/workflows/linting.yml

@@ -95,7 +95,8 @@ jobs:
         run: |
           yapf -p -d -r \
             tools/*.py \
-            blueprints
+            blueprints \
+            fast
 
       - name: Check blueprint metadata
         id: metadata