fix: Dockerfile to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-DEBIAN11-GLIBC-5927133
- https://snyk.io/vuln/SNYK-DEBIAN11-GLIBC-5927133
- https://snyk.io/vuln/SNYK-DEBIAN11-LIBWEBP-5893094
- https://snyk.io/vuln/SNYK-DEBIAN11-NGHTTP2-5953384
- https://snyk.io/vuln/SNYK-DEBIAN11-CURL-1585150

Dockerfile

@@ -11,7 +11,7 @@ COPY ./ /app/
 
 RUN npm run build
 
-FROM nginx:1.20
+FROM nginx:1.27.3
 
 COPY --from=build-stage /app/build/ /usr/share/nginx/html