chore(deps): update nginx docker tag to v1.29.3

Author: renovate[bot]

Dockerfile

@@ -2,7 +2,7 @@
 # Stage 1: Build the Angular Application
 # =========================================
 ARG NODE_VERSION=22.14.0-alpine
-ARG NGINX_VERSION=1.29.1-alpine
+ARG NGINX_VERSION=1.29.3-alpine
 
 # Use a lightweight Node.js image for building (customizable via ARG)
 FROM node:${NODE_VERSION} AS builder