undefined method operator_method?'` in 0.32

[alaz]

Version 0.32 errors out with the following trace:

An error occurred while Minitest/AssertOperator cop was inspecting /Users/alaz/projects/legitbot/test/you_test.rb:36:4.
undefined method `operator_method?' for s(:lvar, :bot):RuboCop::AST::Node
Did you mean?  operator_keyword?
/Users/alaz/.rbenv/versions/3.0.6/lib/ruby/gems/3.0.0/gems/rubocop-minitest-0.32.0/lib/rubocop/cop/minitest/assert_operator.rb:23:in `on_send'
/Users/alaz/.rbenv/versions/3.0.6/lib/ruby/gems/3.0.0/gems/rubocop-1.56.3/lib/rubocop/cop/commissioner.rb:143:in `public_send'
/Users/alaz/.rbenv/versions/3.0.6/lib/ruby/gems/3.0.0/gems/rubocop-1.56.3/lib/rubocop/cop/commissioner.rb:143:in `block (2 levels) in trigger_restricted_cops'

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Expected behavior

Actual behavior

Steps to reproduce the problem

I noticed this from the failure run of a weekly Github action which runs rubocop on https://github.com/alaz/legitbot . The action's log is here.

How to repro:

bundle exec rubocop -d

RuboCop version

1.56.3 (using Parser 3.2.2.3, rubocop-ast 1.29.0, running on ruby 3.0.6) [x86_64-darwin22]
  - rubocop-minitest 0.32.0