Bug 1606009 - Fix & silent some tests r=Callek

Differential Revision: https://phabricator.services.mozilla.com/D58266

--HG--
extra : moz-landing-system : lando

.yamllint

@@ -1,5 +1,6 @@
 ---
+extends: default
+
 ignore: |
   *node_modules*
-
-extends: default
+  *bad.yml

taskcluster/.yamllint

@@ -5,11 +5,11 @@ ignore: |
 extends: default
 
 rules:
-  document-end:
-     present: false
-  document-start:
-     present: true
-  indentation:
-     spaces: 4
-  # Checks currently failing
-  line-length: disable
+    document-end:
+        present: false
+    document-start:
+        present: true
+    indentation:
+        spaces: 4
+    # Checks currently failing
+    line-length: disable