Render the creating resource when a path has several resources

[tas50]

Fixes chefspec#858

Problem

render_file resolved the resource for a path like this:

@resource ||= @runner.find_resource(:cookbook_file, @path) ||
  @runner.find_resource(:file, @path) ||
  @runner.find_resource(:template, @path)

It stops at the first match and never considers the action. A recipe that renders a config file with a template and removes it with a guarded file resource declares two resources for the same path, so the file[:delete] resource wins and render_file reports the file as unrendered.

The confusing part is that create_template matches correctly at the same time, which makes this look like a rendering bug rather than a lookup bug.

template '/tmp/thing' do
  source 'thing.erb'
end

file '/tmp/thing' do
  action :delete
end

expected Chef run to render "/tmp/thing"

Fix

Collect all candidate resources for the path and prefer whichever one performs a create-like action, falling back to the first match so failure messages are unchanged when nothing creates the file.

Testing

Adds a template plus file[:delete] pair for the same path to the render_file acceptance example.

• With the fix: 55 examples, 0 failures
• With the fix reverted: 55 examples, 2 failures
• Unit suite: 197 examples, 0 failures
• All acceptance examples pass

[tas50]

CI on this PR is red for an unrelated reason: main's bundle cannot be installed on Linux, which breaks every job before any test runs. That is fixed separately in #56, which is green across Ruby 3.1 to 3.4. This PR should go green once #56 lands and this branch is rebased.

Locally, against a working bundle, this branch passes rake unit and the acceptance examples.