fix: Dockerfile to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-ALPINE317-LIBWEBP-5902239
- https://snyk.io/vuln/SNYK-ALPINE317-NGHTTP2-5954769
- https://snyk.io/vuln/SNYK-ALPINE317-CURL-3320725
- https://snyk.io/vuln/SNYK-ALPINE317-CURL-3320725
- https://snyk.io/vuln/SNYK-ALPINE317-CURL-5958910

Dockerfile

@@ -15,7 +15,7 @@ ENV REACT_APP_API_HOST $API_HOST
 RUN npm run build
 
 
-FROM nginx:1.23.3-alpine
+FROM nginx:1.27-alpine
 COPY --from=build /app/build /usr/share/nginx/html
 EXPOSE 80
 CMD ["nginx", "-g", "daemon off;"]