chore: add changeset

Author: cabljac

.changeset/old-shirts-hide.md

@@ -0,0 +1,10 @@
+---
+"@dataconnect/default-connector": minor
+"@tanstack-query-firebase/react": minor
+---
+
+Firebase v12.0.0 support whilst maintaining backward compatibility.
+
+- Update peerDependencies to support Firebase v10.14.0+, v11.3.0+, and v12.0.0+
+- Users can now use any supported Firebase version
+- No breaking changes to existing functionality