Update AZTEC_VERSION in devcontainer Dockerfile to 4.2.0-aztecnr-rc.2

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: critesjosh

.devcontainer/Dockerfile

@@ -3,7 +3,7 @@ SHELL ["/bin/bash", "-c"]
 
 ENV NVM_DIR=/root/.nvm
 ENV NODE_VERSION=24.12.0
-ARG AZTEC_VERSION=4.0.0-devnet.2-patch.1
+ARG AZTEC_VERSION=4.2.0-aztecnr-rc.2
 ENV AZTEC_VERSION=$AZTEC_VERSION
 ENV NON_INTERACTIVE=1
 ENV BIN_PATH=/usr/local/bin