envoy: 1.31.1 -> 1.31.2

https://github.com/envoyproxy/envoy/releases/tag/v1.31.2

CVE-2024-45807: oghttp2 crash on OnBeginHeadersForStream
CVE-2024-45808: Malicious log injection via access logs
CVE-2024-45806: Potential manipulate x-envoy headers from external sources
CVE-2024-45809: Jwt filter crash in the clear route cache with remote JWKs
CVE-2024-45810: Envoy crashes for LocalReply in http async client

pkgs/by-name/en/envoy/package.nix

@@ -25,9 +25,9 @@ let
     # However, the version string is more useful for end-users.
     # These are contained in a attrset of their own to make it obvious that
     # people should update both.
-    version = "1.31.1";
-    rev = "1f44388cee449c9dae8ae34c0b4f09036bcbf560";
-    hash = "sha256-XvlF3hMS2PH87HgFwKoFzxHDYgRjZmxn02L1aLwYOrY=";
+    version = "1.31.2";
+    rev = "cc4a75482810de4b84c301d13deb551bd3147339";
+    hash = "sha256-mfQpEGLMJV3UKqcUdbhy6/pP1sWut26zjwN6vDE7LmA=";
   };
 
   # these need to be updated for any changes to fetchAttrs