Add changeset

Author: brophdawg11

.changeset/shy-lemons-boil.md

@@ -0,0 +1,10 @@
+---
+"@react-router/cloudflare": minor
+"@react-router/architect": minor
+"@react-router/express": minor
+"@react-router/node": minor
+"@react-router/dev": minor
+"react-router": minor
+---
+
+Stabilize middleware and context APIs