renovate: drop kind-config.yaml files from included paths

The kind configuration files no longer hard-code the kind image, hence
they don't need to be automatically renovated.

Signed-off-by: Marco Iorio <marco.iorio@isovalent.com>

.github/renovate.json5

@@ -13,8 +13,6 @@
     ".github/actions/lvh-kind/**",
     ".github/actions/set-env-variables/action.yml",
     ".github/workflows/**",
-    ".github/kind-config.yaml",
-    ".github/kind-config-ipv6.yaml",
     "images/**",
     "examples/hubble/*",
     "go.mod",