Use Rails 7.1.5 for Rails v7.1

- format yaml

Author: toshimaru

_config.yml

@@ -8,7 +8,7 @@ rails_versions:
     specific_version: "7.2.2"
     latest: true
   "7.1":
-    specific_version: "7.1.3"
+    specific_version: "7.1.5"
   "7.0":
     specific_version: "7.0.8"
   "6.1":
@@ -34,29 +34,29 @@ defaults:
       version: 7.2
       image: https://avatars.githubusercontent.com/u/4223
       toc: true
-      root_path: '/'
+      root_path: "/"
   - scope:
       path: "7.1"
     values:
       version: 7.1
-      root_path: '/7.1/'
+      root_path: "/7.1/"
   - scope:
       path: "7.0"
     values:
       version: 7.0
-      root_path: '/7.0/'
+      root_path: "/7.0/"
   - scope:
       path: "6.1"
     values:
       version: 6.1
-      root_path: '/6.1/'
+      root_path: "/6.1/"
   - scope:
       path: "6.0"
     values:
       version: 6.0
-      root_path: '/6.0/'
+      root_path: "/6.0/"
   - scope:
       path: "5.2"
     values:
       version: 5.2
-      root_path: '/5.2/'
+      root_path: "/5.2/"