chore(deps): Bump nginx from 1.25-alpine to 1.31-alpine

Bumps nginx from 1.25-alpine to 1.31-alpine.

---
updated-dependencies:
- dependency-name: nginx
  dependency-version: 1.31-alpine
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Dockerfile.web

@@ -26,7 +26,7 @@ ENV VITE_OTLP_HTTP_ENDPOINT=$VITE_OTLP_HTTP_ENDPOINT \
 RUN npm run build
 
 # Serve with nginx
-FROM nginx:1.25-alpine
+FROM nginx:1.31-alpine
 
 COPY --from=builder /app/dist /usr/share/nginx/html
 COPY web/nginx.conf /etc/nginx/conf.d/default.conf