Previously, if labels or annotations inside an objectTemplate used
values that were not strings, the ConfigurationPolicy might try to
remove all labels or annotations on that object. That behavior was
potentially destructive, and it was easy for a policy author to
accidentally trigger by getting some quotes wrong in their template, or
by using `yes` as a value (which is interpreted by some parsers as a
boolean `true`).

Now, the ConfigurationPolicy will emit a special error if the input
object template has invalid labels or annotations.

Refs:
 - https://issues.redhat.com/browse/ACM-26186

Signed-off-by: Justin Kulikauskas <[email protected]>
(cherry picked from commit c20f5551aa38a480afd90aa3071e1fbbad821481)