deps: bump path-to-regexp@0.1.12 (#6209)

fix backtracking protection

Author: jonchurch

Diff for: History.md

@@ -1,6 +1,8 @@
 unreleased
 ==========
 
+  * deps: path-to-regexp@0.1.12
+    - Fix backtracking protection
   * deps: path-to-regexp@0.1.11
     - Throws an error on invalid path values
 

Diff for: package.json

@@ -51,7 +51,7 @@
     "methods": "~1.1.2",
     "on-finished": "2.4.1",
     "parseurl": "~1.3.3",
-    "path-to-regexp": "0.1.11",
+    "path-to-regexp": "0.1.12",
     "proxy-addr": "~2.0.7",
     "qs": "6.13.0",
     "range-parser": "~1.2.1",