chore(deps): update nginxinc/nginx-unprivileged docker tag to v1.26

Dockerfile

@@ -25,7 +25,7 @@ COPY /static ./static
 RUN yarn build
 
 # Expose server port
-FROM nginxinc/nginx-unprivileged:1.25
+FROM nginxinc/nginx-unprivileged:1.26
 
 RUN rm -rf /etc/nginx/html/* 
 COPY --from=builder /app/build /usr/share/nginx/html