Exclude the yaml template from the linter

It is only possible to lint the executed template, not the raw "yaml".

But it is syntax-checked by butane --strict anyway, so is not needed.

Signed-off-by: Anders F Björklund <anders.f.bjorklund@gmail.com>

.yamllint

@@ -2,6 +2,10 @@
 
 extends: default
 
+ignore: |
+  # this is a yaml template, needs to executed
+  pkg/cidata/cidata.TEMPLATE.d/ignition.yaml
+
 rules:
   indentation:
     indent-sequences: false