change set-output name from deno-version to bun-version

src/index.ts

@@ -11,20 +11,20 @@ const main = async() => {
     try {
         const version = getInput('bun-version');
         const token = getInput('github-token');
-    
+
         if (!version) return exit('Invalid bun version.');
 
         const release = await getGithubRelease(version, token);
         if (release?.message === 'Not Found') return exit('Invalid bun version.');
 
         info(`Going to install release ${release.tag_name}`);
-    
+
         await install(release);
-    
-        setOutput('deno-version', release.tag_name);
+
+        setOutput('bun-version', release.tag_name);
     } catch(e) {
         exit(e);
     }
 }
 
-main();
+main();