Update .prow.yaml

Author: goern

.prow.yaml

@@ -6,7 +6,7 @@ presubmits:
     context: op1st/prow/pre-commit
     spec:
       containers:
-        - image: quay.io/operate-first/opf-toolbox:v0.5.0
+        - image: quay.io/operate-first/opf-toolbox:v0.12.0
           command:
             - "pre-commit"
             - "run"