setup-php: Sudden pecl errors with self-hosted runner

Describe the bug

My actions workflow on a self-hosted runner has started spitting out new pecl errors all of a sudden in PHP 8.0

Version

• I have checked releases, and the bug exists in the latest patch version of v1 or v2.
• v2
• v1

Runners

• GitHub Hosted
• Self Hosted

Operating systems

Ubuntu 20.04 LTS

PHP versions

PHP 8.0

To Reproduce

- name: Setup PHP
   uses: shivammathur/setup-php@2.17.0
   with:
     php-version: 8.0
     tools: cs2pr
   env:
     runner: self-hosted # Specify the runner.

Expected behavior

It was working before as normal, setting up PHP 8.0.

Screenshots/Logs

Run shivammathur/setup-php@2.17.0
  with:
    php-version: 8
    tools: cs2pr
    ini-file: production
  env:
    runner: self-hosted
/bin/bash /opt/actions-runner/1/_work/_actions/shivammathur/setup-php/2.17.0/src/scripts/run.sh

==> Setup PHP
grep: : No such file or directory
grep: : No such file or directory
/opt/actions-runner/1/_work/_actions/shivammathur/setup-php/2.17.0/src/scripts/../scripts/unix.sh: line 170: php_config: parameter null or not set
ln: failed to create symbolic link '/opt/actions-runner/1/_work/_actions/shivammathur/setup-php/2.17.0/src/configs/ini/conf.d/99-pecl.ini': No such file or directory
chmod: cannot access '/conf.d/99-pecl.ini': No such file or directory
✓ PHP Switched to PHP 

==> Setup Tools
✗ composer Could not download composer

Additional context

Are you willing to submit a PR?

Honestly right now have no idea of a fix