refactor: replace @actions/io w/ Node.js built-in fs method

package.json

@@ -50,8 +50,7 @@
     "@actions/core": "^1.10.0",
     "@actions/exec": "^1.1.1",
     "@actions/github": "^5.1.1",
-    "@actions/glob": "^0.4.0",
-    "@actions/io": "^1.1.2"
+    "@actions/glob": "^0.4.0"
   },
   "devDependencies": {
     "@types/jest": "^29.2.6",

src/set-tokens.ts

@@ -1,7 +1,6 @@
 import * as core from '@actions/core';
 import * as exec from '@actions/exec';
 import * as github from '@actions/github';
-import * as io from '@actions/io';
 import path from 'path';
 import fs from 'fs';
 // eslint-disable-next-line @typescript-eslint/no-var-requires
@@ -17,7 +16,7 @@ export async function setSSHKey(inps: Inputs, publishRepo: string): Promise<stri
 
   const homeDir = await getHomeDir();
   const sshDir = path.join(homeDir, '.ssh');
-  await io.mkdirP(sshDir);
+  await fs.promises.mkdir(sshDir, {recursive: true});
   await exec.exec('chmod', ['700', sshDir]);
 
   const knownHosts = path.join(sshDir, 'known_hosts');

src/utils.ts

@@ -24,7 +24,7 @@ export async function getWorkDirName(unixTime: string): Promise<string> {
 }
 
 export async function createDir(dirPath: string): Promise<void> {
-  await io.mkdirP(dirPath);
+  await fs.promises.mkdir(dirPath, {recursive: true});
   core.debug(`Created directory ${dirPath}`);
   return;
 }