chore: type version const

git.version.ts

@@ -12,7 +12,7 @@ async function createVersionsFile(filename: string) {
 
   const content = dedent`
       // this file is automatically generated by git.version.ts script
-      export const versions = {
+      export const versions: Versions = {
         version: "${process.env.npm_package_version}",
         revision: "${revision}",
         branch: "${branch}"