chore(deps): update nginxproxy/nginx-proxy docker tag to v1.5.2 (#4)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

docker/nginx-proxy/Dockerfile

@@ -1,4 +1,4 @@
-FROM nginxproxy/nginx-proxy:1.5.1-alpine
+FROM nginxproxy/nginx-proxy:1.5.2-alpine
 
 COPY conf.d/* /etc/nginx/conf.d/
 COPY nginx.tmpl /app/