ci: fix the release it config to only show user-facing changes

This change adjusts the release it config so that the output generated from the changelog plugin is used for the github release page.

Using autoGenerate overrides the output from the changelog plugin from making it onto the GH release.

Ref: JoshuaKGoldberg/eslint-plugin-package-json#789

.release-it.json

@@ -4,7 +4,6 @@
 		"requireCommits": true
 	},
 	"github": {
-		"autoGenerate": true,
 		"release": true,
 		"releaseName": "v${version}"
 	},