Skip unnecessary :context|:all hooks

This makes that previous test pass, and the test suite is still green,
so I'm _assuming_ that this works and doesn't break other stuff!
However, I'd be happy to make any alterations if this doesn't look like
it's the right way of tackling this problem.

Author: devonestes

lib/rspec/core/hooks.rb

@@ -456,7 +456,9 @@ def run(position, scope, example_or_group)
           return if RSpec.configuration.dry_run?
 
           if scope == :context
-            run_owned_hooks_for(position, :context, example_or_group)
+            unless example_or_group.class.metadata[:skip]
+              run_owned_hooks_for(position, :context, example_or_group)
+            end
           else
             case position
             when :before then run_example_hooks_for(example_or_group, :before, :reverse_each)