fix: Dockerfile to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-DEBIAN11-CURL-3320493
- https://snyk.io/vuln/SNYK-DEBIAN11-CURL-3320493
- https://snyk.io/vuln/SNYK-DEBIAN11-GLIBC-6673955
- https://snyk.io/vuln/SNYK-DEBIAN11-GLIBC-6673958
- https://snyk.io/vuln/SNYK-DEBIAN11-ZLIB-6008961

Dockerfile

@@ -12,7 +12,7 @@ RUN npm run ci:check
 RUN npm run build
 
 # Stage 2 - the static server
-FROM nginx:1.24
+FROM nginx:1.25.5
 COPY --from=build-deps /usr/src/app/build /var/www
 COPY nginx.conf /etc/nginx/nginx.conf
 EXPOSE 80