chore: fix changeset yaml (#15292)

Co-authored-by: vercel[bot] <35613825+vercel[bot]@users.noreply.github.com>
Co-authored-by: Ben McCann <[email protected]>

Author: 3 people

.changeset/foo-bar-baz.md

@@ -1,5 +1,5 @@
 ---
-@sveltejs/enhanced-img: patch
+'@sveltejs/enhanced-img': patch
 ---
 
 fix: replace erroneous `import.meta.DEV` with `import.meta.env.DEV` in generated code