Fix snippet when using SAST_DISABLED

The job rules don't work correctly when
the first rule is not met and no pipeline
is created.

README.md

@@ -25,6 +25,7 @@ include:
     rules:
       - if: $SAST_DISABLED == "true" || $SAST_DISABLED == "1"
         when: never
+      - when: always
 ```
 
 Otherwise all SAST jobs will always run when applicable.