Update Prism version in default-bundled-gems

Author: andrykonchin

test/truffle/gems/default-bundled-gems/Gemfile

@@ -42,7 +42,7 @@ gem "ostruct", "0.6.0"
 gem "pathname", "0.3.0"
 gem "pp", "0.5.0"
 gem "prettyprint", "0.2.0"
-gem "prism", "1.1.0"
+gem "prism", "1.4.0"
 gem "pstore", "0.1.3"
 gem "psych", "5.1.2"
 gem "rdoc", "6.6.3.1"

test/truffle/gems/default-bundled-gems/Gemfile.lock

@@ -70,7 +70,7 @@ GEM
     prime (0.1.2)
       forwardable
       singleton
-    prism (1.1.0)
+    prism (1.4.0)
     pstore (0.1.3)
     psych (5.1.2)
       stringio
@@ -175,7 +175,7 @@ DEPENDENCIES
   pp (= 0.5.0)
   prettyprint (= 0.2.0)
   prime (= 0.1.2)
-  prism (= 1.1.0)
+  prism (= 1.4.0)
   pstore (= 0.1.3)
   psych (= 5.1.2)
   racc (= 1.7.3)