Change all outputs to warnings so the lint step will pass always (#3)

lint-workflow/.yamllint.yml

@@ -3,10 +3,32 @@
 extends: default
 
 rules:
+  braces:
+    level: warning
+  brackets:
+    level: warning
+  colons:
+    level: warning
+  commas:
+    level: warning
+  empty-lines:
+    level: warning
+  hypens:
+    level: warning
   indentation:
+    level: warning
     spaces: 2
+  key-duplicates:
+    level: warning
   line-length:
     level: warning
     max: 120
+  new-line-at-end-of-file:
+    level: warning
+  new-lines:
+    level: warning
+  trailing-spaces:
+    level: warning
   truthy:
     check-keys: false
+    level: warning