use temp dir

dist/setup/index.js

@@ -61445,7 +61445,7 @@ function installGoVersion(info, auth, arch) {
         core.info(`Acquiring ${info.resolvedVersion} from ${info.downloadUrl}`);
         // Windows requires that we keep the extension (.zip) for extraction
         const isWindows = os_1.default.platform() === 'win32';
-        const tempDir = process.env.RUNNER_TEMP || '.';
+        const tempDir = os_1.default.tmpdir(); // process.env.RUNNER_TEMP || '.';
         const fileName = isWindows ? path.join(tempDir, info.fileName) : undefined;
         const downloadPath = yield tc.downloadTool(info.downloadUrl, fileName, auth);
         core.info('Extracting Go...');

src/installer.ts

@@ -173,7 +173,7 @@ async function installGoVersion(
 
   // Windows requires that we keep the extension (.zip) for extraction
   const isWindows = os.platform() === 'win32';
-  const tempDir = process.env.RUNNER_TEMP || '.';
+  const tempDir = os.tmpdir(); // process.env.RUNNER_TEMP || '.';
   const fileName = isWindows ? path.join(tempDir, info.fileName) : undefined;
 
   const downloadPath = await tc.downloadTool(info.downloadUrl, fileName, auth);