Infinite loop in Style/Encoding with uppercase token

[tbates-redarc]

Running RuboCop autocorrect on a file containing a line:

# Encoding: UTF-8

causes an infinite loop. I think this is because EditorComment#without only matches on lowercase tokens.

---

Expected behavior

Rubocop removes the offending line.

Actual behavior

>rubocop --autocorrect
Inspecting 36 files
C

Offenses:

test.rb:1:1: C: [Corrected] Style/Encoding: Unnecessary utf-8 encoding comment.
# Encoding: UTF-8
^^^^^^^^^^^^^^^^^

0 files inspected, 1 offense detected, 1 offense corrected
Infinite loop detected in test.rb and caused by Style/Encoding
C:/Ruby31-x64/lib/ruby/gems/3.1.0/gems/rubocop-1.61.0/lib/rubocop/runner.rb:332:in `check_for_infinite_loop'

Steps to reproduce the problem

1. Create an file with an Encoding: UTF-8 comment (Encoding must not be all in lowercase).
2. Run rubocop --autocorrect.

RuboCop version

1.61.0 (using Parser 3.3.0.5, rubocop-ast 1.31.1, running on ruby 3.1.3) [x64-mingw-ucrt]