This PR fixes the following incorrect autocorrect for Style/Semicolon when a method call using hash value omission without parentheses is terminated with a semicolon:

$ echo 'm key:;do_something' | RUBOCOP_TARGET_RUBY_VERSION=3.1 bundle exec rubocop --stdin example.rb -A --only Style/Semicolon
Inspecting 1 file
C

Offenses:

example.rb:1:7: C: [Corrected] Style/Semicolon: Do not use semicolons to terminate expressions.
m key:;do_something
      ^

1 file inspected, 1 offense detected, 1 offense corrected
====================
m key:
do_something

This changes the meaning so that the standalone expression do_something is treated as a hash key.

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