yamllint add rule checking for braces and brackets (#2528)

No changes to the codebase using these two rules and their settings.

https://yamllint.readthedocs.io/en/stable/rules.html#module-yamllint.rules.braces

https://yamllint.readthedocs.io/en/stable/rules.html#module-yamllint.rules.brackets

Author: jbampton

.github/linters/.yaml-lint.yml

@@ -20,8 +20,12 @@
 extends: default
 
 rules:
-  braces: disable
-  brackets: disable
+  braces:
+    min-spaces-inside: 1
+    max-spaces-inside: 1
+  brackets:
+    min-spaces-inside: 0
+    max-spaces-inside: 1
   comments:
     ignore-shebangs: true
     min-spaces-from-content: 1