Bump kindest/node from v1.29.2 to v1.30.0 in /tests (#2016)

Author: lucacome

tests/Dockerfile

@@ -1,3 +1,3 @@
 # syntax=docker/dockerfile:1.7
 # this is here so we can grab the latest version of kind and have dependabot keep it up to date
-FROM kindest/node:v1.29.2
+FROM kindest/node:v1.30.0