chore: update release strategy in changeset

.changeset/perfect-wasps-grow.md

@@ -2,7 +2,10 @@
 'astro': patch
 ---
 
-Exposes `z` from the new `astro:schema` module. This is the new recommended import source for all Zod utilities in Astro. `z` is will still be available to import from `astro:actions` until version 4.15, and available from `astro:content` until our planned deprecation in the next major release. Note `z` will be the same regardless of where it is imported from.
+Exposes `z` from the new `astro:schema` module. This is the new recommended import source for all Zod utilities in Astro. `z` will still be available to import from existing Astro modules (`astro:content` and `astro:actions`), but this will change in future releases:
+
+- `z` will be **removed** from `astro:actions` in the next minor release.
+- `z` will be **deprecated** in `astro:content` in the next major release.
 
 ## Migration for Astro Actions users