CLI-1436: PHP 8.4 compatibility

[danepowell]

Motivation

Fixes CLI-1436

Depends on:

• [PHP 8.4] Fixes for implicit nullability deprecation thecodingmachine/safe#441
• CLI-1436: PHP 8.4 compatibility drupal-environment-detector#97
• CLI-1436: PHP 8.4 compatibility typhonius/acquia-php-sdk-v2#483
• PHP 8.4 compatibility grasmash/expander#20
• Make compatible with PHP 8.4 thephpleague/oauth2-client#1039

Proposed changes

We will follow up to fix the forked dependencies for the packages that seem to be abandoned. I've vetted the code currently in those feature branches but that is not a secure long-term solution.

Alternatives considered

Testing steps

1. Follow the contribution guide to set up your development environment or download a pre-built acli.phar for this PR.
2. If running from source, clear the kernel cache to pick up new and changed commands: ./bin/acli ckc
3. Run wacli completion

[github-actions]

Try the dev build for this PR: https://acquia-cli.s3.amazonaws.com/build/pr/1834/acli.phar

curl -OL https://acquia-cli.s3.amazonaws.com/build/pr/1834/acli.phar
chmod +x acli.phar