Update rust in tproxy docker image to 1.86

Author: kvinwang

gateway/dstack-app/docker-compose.yaml

@@ -3,7 +3,7 @@ services:
     build:
       context: .
       dockerfile_inline: |
-        FROM rust:1.84@sha256:738ae99a3d75623f41e6882566b4ef37e38a9840244a47efd4a0ca22e9628b88
+        FROM rust:1.86.0@sha256:300ec56abce8cc9448ddea2172747d048ed902a3090e6b57babb2bf19f754081
         WORKDIR /src
         RUN apt-get update && apt-get install -y \
             git build-essential libssl-dev protobuf-compiler \