fix: Dockerfile to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-DEBIAN11-GNUTLS28-6159417
- https://snyk.io/vuln/SNYK-DEBIAN11-GNUTLS28-6159419
- https://snyk.io/vuln/SNYK-DEBIAN11-LIBSSH2-5861756
- https://snyk.io/vuln/SNYK-DEBIAN11-CURL-3320493
- https://snyk.io/vuln/SNYK-DEBIAN11-CURL-3320493

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:1.26.1
 COPY --from=build-deps /usr/src/app/build /var/www
 COPY nginx.conf /etc/nginx/nginx.conf
 EXPOSE 80