Improve deprecation experience.

.buildpacks

@@ -1,3 +1,3 @@
 https://github.com/heroku/heroku-buildpack-nodejs.git
 https://github.com/mars/create-react-app-inner-buildpack.git#v9.0.0
-https://github.com/heroku/heroku-buildpack-static.git
+https://github.com/heroku/heroku-buildpack-static.git#21c1f5175186b70cf247384fd0bf922504b419be

bin/compile

@@ -26,6 +26,14 @@ BP_DIR=`cd $(dirname $0); cd ..; pwd`
 # Switch to new Node auto build behavior ahead of release
 export NEW_BUILD_SCRIPT_BEHAVIOR=true
 
+echo
+echo "=====! create-react-app-buildpack has reached end-of-life 🌅"
+echo "       This build may succeed, but the buildpack is no longer maintained."
+echo "       On the Heroku-22 stack and beyond, this may fail to build at all."
+echo
+echo "       Please consider migrating to https://nextjs.org or https://remix.run to develop React apps which are deployable using Heroku's Node.js buildpack https://github.com/heroku/heroku-buildpack-nodejs, or you may develop your own create-react-app deployment with Node.js and Nginx buildpacks."
+echo
+
 # Use architecture of multi-buildpack to compose behavior.
 # https://github.com/heroku/heroku-buildpack-multi
 cp $BP_DIR/.buildpacks $BUILD_DIR/.buildpacks