fix: services/web/Dockerfile to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-ALPINE318-EXPAT-7908292
- https://snyk.io/vuln/SNYK-ALPINE318-EXPAT-7908293
- https://snyk.io/vuln/SNYK-ALPINE318-EXPAT-6241039
- https://snyk.io/vuln/SNYK-ALPINE318-OPENSSL-6032386
- https://snyk.io/vuln/SNYK-ALPINE318-OPENSSL-7895535

Author: snyk-bot

services/web/Dockerfile

@@ -25,7 +25,7 @@ RUN NODE_OPTIONS=--max_old_space_size=4096 npm run build
 RUN ls /app/build
 
 # Main Image
-FROM openresty/openresty:alpine
+FROM openresty/openresty:1.21.4.4-1-alpine
 RUN apk add gettext curl
 # React
 RUN rm /etc/nginx/conf.d/default.conf