Make ansible-lint and yamllint use more strict rules.

This patch modifies configuration of both ansible-lint and yamllint
to check for more rules, resulting in a more strict verification.

For ansible-lint verification of errors 301, 305 and 505 are skipped,
due to false positives. For the same reason, 'experimental' rules
are skipped.

ansible-lint error 306 is skipped since the fix is to set pipefail,
which is not available in all shells (for example dash, which runs
ansible-freeipa CI).

Yamllint disabled rules (comments, and indentation) would introduce a
huge amount of small changes, and are left for future changes, it
deemed necessary.

.yamllint

@@ -16,13 +16,8 @@ rules:
   truthy:
     allowed-values: ["yes", "no", "true", "false", "True", "False"]
     level: error
+  line-length:
+    max: 160
   # Disabled rules
-  document-start: disable
   indentation: disable
-  line-length: disable
-  colons: disable
-  empty-lines: disable
   comments: disable
-  comments-indentation: disable
-  trailing-spaces: disable
-  new-line-at-end-of-file: disable