Provide a 'Changelog' link on rubygems.org/gems/diff-lcs #105

Job	Run time
Ruby 2.4 - macos-latest	1m 7s
Ruby 2.5 - macos-latest	1m 8s
Ruby 2.6 - macos-latest	1m 13s
Ruby 2.7 - macos-latest	53s
Ruby 3.0 - macos-latest	25s
Ruby 3.1 - macos-latest	30s
Ruby 3.2 - macos-latest	21s
Ruby 3.3 - macos-latest	44s
Ruby head - macos-latest	1s
Ruby jruby - macos-latest	2m 50s
Ruby jruby-head - macos-latest	2m 35s
Ruby truffleruby - macos-latest	2m 49s
Ruby 2.4 - ubuntu-20.04	22s
Ruby 2.5 - ubuntu-20.04	23s
Ruby 2.6 - ubuntu-20.04	27s
Ruby 2.7 - ubuntu-20.04	25s
Ruby 3.0 - ubuntu-20.04	17s
Ruby 3.1 - ubuntu-20.04	12s
Ruby 3.2 - ubuntu-20.04	15s
Ruby 3.3 - ubuntu-20.04	20s
Ruby head - ubuntu-20.04	16s
Ruby jruby - ubuntu-20.04	1m 48s
Ruby jruby-head - ubuntu-20.04	1m 44s
Ruby truffleruby - ubuntu-20.04	47s
Ruby mingw - windows-latest	1m 15s
Ruby mswin - windows-latest	1m 23s
Ruby jruby - windows-latest	2m 50s
Ruby head - ubuntu-22.04	10s
Ruby 3.1 - ubuntu-22.04	13s
Ruby 3.2 - ubuntu-22.04	13s
Ruby 3.3 - ubuntu-22.04	24s
	28m 20s

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