Merge pull request #668 from ruby/dependabot/bundler/mcp-1.3.0

Bump mcp from 1.0.0 to 1.3.0

Author: hsbt

Gemfile.lock

@@ -135,7 +135,7 @@ GEM
       net-pop
       net-smtp
     marcel (1.2.1)
-    mcp (1.0.0)
+    mcp (1.3.0)
       json_schemer (>= 2.4)
     mini_mime (1.1.5)
     mini_portile2 (2.8.9)