actually use a bundler version that supports this syntax

pcai · pcai · commit 88f36f7545b1 · 2024-03-09T20:09:08.000Z
diff --git a/Gemfile.lock b/Gemfile.lock
@@ -216,4 +216,4 @@ RUBY VERSION
    ruby 3.2.3p157
 
 BUNDLED WITH
-   2.3.26
+   2.5.6
