Linting yamls with yamllint 🏷

Next update of plumbing will enable `yamllint` check, so this make
sure we have linted yaml before 👼

Signed-off-by: Vincent Demeester <vdemeest@redhat.com>

.yamllint

@@ -0,0 +1,35 @@
+ignore: |
+  /vendor
+
+rules:
+  braces: enable
+  brackets: enable
+  colons: enable
+  commas: enable
+  comments:
+    level: warning
+  comments-indentation:
+    level: warning
+  document-end: disable
+  document-start: disable
+  empty-lines: enable
+  empty-values: enable
+  hyphens: enable
+  key-duplicates: enable
+  key-ordering: disable
+  line-length: disable
+  new-line-at-end-of-file: disable
+  new-lines: enable
+  octal-values: enable
+  quoted-strings: disable
+  trailing-spaces: enable
+  truthy:
+    level: warning
+
+  # accept both     key:
+  #                   - item
+  #
+  # and             key:
+  #                 - item
+  indentation:
+    indent-sequences: whatever

ansible-tower-cli/ansible-tower-cli-task.yaml

@@ -52,4 +52,3 @@ spec:
       command: ["/usr/bin/tower-cli"]
       args:
         - "$(inputs.params.ARGS)"
-

buildah/buildah.yaml

@@ -1,3 +1,4 @@
+---
 apiVersion: tekton.dev/v1alpha1
 kind: Task
 metadata:

golang/lint.yaml

@@ -11,7 +11,7 @@ spec:
       description: flags to use for the test command
       default: --verbose
     - name: version
-      default: golangci-lint version to use
+      description: golangci-lint version to use
       default: "v1.17.1"
     - name: GOOS
       description: "running operating system target"

openwhisk/openwhisk.yaml

@@ -92,4 +92,3 @@ spec:
           args:
           - --dockerfile=$(inputs.params.DOCKERFILE)
           - --destination=$(outputs.resources.runtime-image.url)
-

openwhisk/service-account.yaml

@@ -5,4 +5,3 @@ metadata:
   name: openwhisk-runtime-builder
 secrets:
 - name: dockerhub-user-pass
-