Maintenance: Update dependency rubocop-rails to v2.26.2

Gemfile.lock

@@ -601,7 +601,7 @@ GEM
     rubocop-performance (1.22.1)
       rubocop (>= 1.48.1, < 2.0)
       rubocop-ast (>= 1.31.1, < 2.0)
-    rubocop-rails (2.26.1)
+    rubocop-rails (2.26.2)
       activesupport (>= 4.2.0)
       rack (>= 1.1)
       rubocop (>= 1.52.0, < 2.0)