Merge pull request #2283 from ruby/dependabot/bundler/diff-lcs-1.6.0

Bump diff-lcs from 1.5.1 to 1.6.0

Author: soutaro

Gemfile.lock

@@ -36,7 +36,7 @@ GEM
     connection_pool (2.5.0)
     csv (3.3.2)
     dbm (1.1.0)
-    diff-lcs (1.5.1)
+    diff-lcs (1.6.0)
     digest (3.2.0)
     drb (2.2.1)
     ffi (1.17.1)