fixed issue where markdown from github releases could be null

Author: WilcoSp

shared/schemas/changelog/release.ts

@@ -5,9 +5,8 @@ export const GithubReleaseSchama = v.object({
   name: v.string(),
   draft: v.boolean(),
   prerelease: v.boolean(),
-  //   publishedAt: v.pipe(v.string(), v.isoDateTime()),
   html: v.string(),
-  markdown: v.string(),
+  markdown: v.nullable(v.string()), // can be null if no descroption was made
   publishedAt: v.pipe(v.string(), v.isoTimestamp()),
 })