Update to latest goflow

Author: rowanseymour

go.mod

@@ -26,7 +26,7 @@ require (
 	github.com/lib/pq v1.10.9
 	github.com/nyaruka/ezconf v0.3.0
 	github.com/nyaruka/gocommon v1.61.1
-	github.com/nyaruka/goflow v0.236.3
+	github.com/nyaruka/goflow v0.236.4
 	github.com/nyaruka/null/v3 v3.0.0
 	github.com/nyaruka/redisx v0.9.0
 	github.com/nyaruka/rp-indexer/v10 v10.1.1

go.sum

@@ -210,8 +210,8 @@ github.com/nyaruka/ezconf v0.3.0 h1:kGvJqVN8AHowb4HdaHAviJ0Z3yI5Pyekp1WqibFEaGk=
 github.com/nyaruka/ezconf v0.3.0/go.mod h1:89GUW6EPRNLIxT7lC4LWnjWTgZeQwRoX7lBmc8ralAU=
 github.com/nyaruka/gocommon v1.61.1 h1:qulMx0jHDWoDagCJbVs7CMLZA33jfa5kYutlXR66pHM=
 github.com/nyaruka/gocommon v1.61.1/go.mod h1:HcwpCzwt8XK7SxmGHYRF1R9viOAvlU7VtXTGuEmJx/8=
-github.com/nyaruka/goflow v0.236.3 h1:vZt8CZJUxUTDwPq5G5J62X703AwaiKQNfq+U8X1Knik=
-github.com/nyaruka/goflow v0.236.3/go.mod h1:m0bwl9WfJhBQHeabOGnWoyy6n5GXaoU27iE7X3hDkeg=
+github.com/nyaruka/goflow v0.236.4 h1:UMhL/pMne63JNCoqIIpAkoSvn6iXusxdUkBtRZH3WRY=
+github.com/nyaruka/goflow v0.236.4/go.mod h1:m0bwl9WfJhBQHeabOGnWoyy6n5GXaoU27iE7X3hDkeg=
 github.com/nyaruka/null/v2 v2.0.3 h1:rdmMRQyVzrOF3Jff/gpU/7BDR9mQX0lcLl4yImsA3kw=
 github.com/nyaruka/null/v2 v2.0.3/go.mod h1:OCVeCkCXwrg5/qE6RU0c1oUVZBy+ZDrT+xYg1XSaIWA=
 github.com/nyaruka/null/v3 v3.0.0 h1:JvOiNuKmRBFHxzZFt4sWii+ewmMkCQ1vO7X0clTNn6E=