github: Update rustc version to 1.72, switch to lldap/rust-dev (#657)

.devcontainer/Dockerfile

@@ -1,7 +1,9 @@
-FROM rust:1.66
+FROM rust:1.72
 
 ARG USERNAME=lldapdev
-ARG USER_UID=1000
+# We need to keep the user as 1001 to match the GitHub runner's UID.
+# See https://github.com/actions/checkout/issues/956.
+ARG USER_UID=1001
 ARG USER_GID=$USER_UID
 
 # Create the user
@@ -21,4 +23,4 @@ RUN RUSTFLAGS=-Ctarget-feature=-crt-static cargo install wasm-pack \
 
 USER $USERNAME
 ENV CARGO_HOME=/home/$USERNAME/.cargo
-ENV SHELL=/bin/bash
+ENV SHELL=/bin/bash