v0.0.58: try this

src/main.ts

@@ -13,9 +13,9 @@ export async function run(): Promise<void> {
   const tmpDirs: string[] = []
 
   try {
-    const whoToGreet = core.getInput('who-to-greet', { required: true })
+    const whoToGreet = process.env.who_to_greet
     core.info(`Hello, ${whoToGreet}!`)
-    const token2 = core.getInput('token', { required: true })
+    const token2 = process.env.TOKEN
     core.info(`Hello, ${token2}!`)
 
     // Parse and validate Actions execution context, including the repository name, release name and event type