Recognize quote as well as backtick in error message

Ruby 3.4 started use singlequote instead of opening backtick in the
error messages [[1]]. This exhibited in error:

~~~
 2) ABRT handles exception in 'abrt.rb' with RubyGems enabled
     Failure/Error:
       expect { system "ruby --disable-gems -rrubygems #{abrt_rb}" }
         .to output(/\A\Z/).to_stdout_from_any_process
         .and output(output_message_pattern).to_stderr_from_any_process

       expected block to output /\A\/mnt\/abrt\/spec\/..\/lib\/abrt.rb:\d+:in `<main>': can't modify frozen Array(: \[1, 2, 3\])? \((FrozenError|RuntimeError)\)\n\Z/ to stderr, but output "/mnt/abrt/spec/../lib/abrt.rb:15:in '<main>': can't modify frozen Array: [1, 2, 3] (FrozenError)\n"
       Diff for (output /\A\/mnt\/abrt\/spec\/..\/lib\/abrt.rb:\d+:in `<main>':...):
       @@ -1 +1 @@
       -/\A\/mnt\/abrt\/spec\/..\/lib\/abrt.rb:\d+:in `<main>': can't modify frozen Array(: \[1, 2, 3\])? \((FrozenError|RuntimeError)\)\n\Z/
       +/mnt/abrt/spec/../lib/abrt.rb:15:in '<main>': can't modify frozen Array: [1, 2, 3] (FrozenError)

     # ./spec/abrt_spec.rb:16:in 'block (3 levels) in <top (required)>'
~~~

[1]: https://bugs.ruby-lang.org/issues/16495

Author: voxik

spec/abrt_spec.rb

@@ -3,7 +3,7 @@
 describe 'ABRT' do
   context "handles exception in 'abrt.rb' with RubyGems" do
     abrt_rb = File.join(File.dirname(__FILE__), '../lib/abrt.rb')
-    output_message_pattern = /\A#{abrt_rb}:\d+:in `<main>': can't modify frozen Array(: \[1, 2, 3\])? \((FrozenError|RuntimeError)\)\n\Z/
+    output_message_pattern = /\A#{abrt_rb}:\d+:in [`']<main>': can't modify frozen Array(: \[1, 2, 3\])? \((FrozenError|RuntimeError)\)\n\Z/
 
     it 'disabled' do
       expect { system "ruby --disable-gems #{abrt_rb}" }