fix: project/c2-microservices-v1/udacity-c2-frontend/Dockerfile to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-ALPINE316-LIBWEBP-5902237
- https://snyk.io/vuln/SNYK-ALPINE316-NGHTTP2-6043732
- https://snyk.io/vuln/SNYK-ALPINE316-CURL-3320719
- https://snyk.io/vuln/SNYK-ALPINE316-CURL-3320719
- https://snyk.io/vuln/SNYK-ALPINE316-CURL-5958908

Author: snyk-bot

project/c2-microservices-v1/udacity-c2-frontend/Dockerfile

@@ -12,6 +12,6 @@ COPY . .
 RUN ionic build
 
 ## Run 
-FROM nginx:1.23.2-alpine
+FROM nginx:1.26.2-alpine
 #COPY www /usr/share/nginx/html
 COPY --from=ionic /usr/src/app/www /usr/share/nginx/html