chore: update zig dependency in devcontainer (#2076)

Updates the `ZIG_VERSION` argument in `.devcontainer/Dockerfile` from `0.16.0-dev.2349+204fa8959` to the latest version available on the ziglang master branch `0.16.0-dev.2877+627f03af9`.

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>

Author: hulto

.devcontainer/Dockerfile

@@ -1,6 +1,6 @@
 FROM mcr.microsoft.com/devcontainers/base:trixie
 
-ARG ZIG_VERSION=0.16.0-dev.2349+204fa8959
+ARG ZIG_VERSION=0.16.0-dev.2877+627f03af9
 
 ENV GOPATH=/go
 ENV RUSTUP_HOME=/usr/local/rustup \