Update changelog repository configuration

Author: mfranzke

.changeset/config.json

@@ -2,7 +2,7 @@
 	"$schema": "https://cdn.jsdelivr.net/npm/@changesets/[email protected]/schema.json",
 	"changelog": [
 		"@changesets/changelog-github",
-		{ "owner": "mfranzke", "repo": "css-if-polyfill" }
+		{ "repo": "mfranzke/css-if-polyfill" }
 	],
 	"commit": false,
 	"fixed": [],