Revert flowzone pinning to master

Change-type: patch

Author: klutchell

.github/workflows/flowzone.yml

@@ -15,5 +15,5 @@ permissions:
 jobs:
   flowzone:
     name: Flowzone
-    uses: product-os/flowzone/.github/workflows/flowzone.yml@8ea01d346097f9c0065143d2c3c7a63f490aa9cc # master
+    uses: product-os/flowzone/.github/workflows/flowzone.yml@master
     secrets: inherit