fix: skip checking git gpgSign config (#5869)

Fix the issue described at #5823 (comment) This simplifies the logic, thus less error-prone. The error message is still correct anyway.

Author: haoqunjiang

packages/@vue/cli/lib/Creator.js

@@ -259,22 +259,13 @@ module.exports = class Creator extends EventEmitter {
 
  // commit initial state
  let gitCommitFailed = false
- let gpgSign = false
  if (shouldInitGit) {
  await run('git add -A')
  if (isTestOrDebug) {
  await run('git', ['config', 'user.name', 'test'])
  await run('git', ['config', 'user.email', 'test@test.com'])
  await run('git', ['config', 'commit.gpgSign', 'false'])
  }
- gpgSign = await (async () => {
- const { stdout: gpgSignConfig } = await run('git', [
- 'config',
- '--get',
- 'commit.gpgSign'
- ])
- return gpgSignConfig === 'true'
- })()
  const msg = typeof cliOptions.git === 'string' ? cliOptions.git : 'init'
  try {
  await run('git', ['commit', '-m', msg, '--no-verify'])
@@ -298,7 +289,7 @@ module.exports = class Creator extends EventEmitter {
 
  if (gitCommitFailed) {
  warn(
- `Skipped git commit due to missing username and email in git config${gpgSign ? ' or failed to sign commit' : ''}.\n` +
+ `Skipped git commit due to missing username and email in git config, or failed to sign commit.\n` +
  `You will need to perform the initial commit yourself.\n`
  )
  }