Fix: Configure `bamarni/composer-bin-plugin`

[localheinz]

What is the reason for this PR?

• [x] configures bamarni/composer-bin-plugin

💁‍♂️ Running

composer update

on current 2.0 yields

[bamarni-bin] The setting "extra.bamarni-bin.bin-links" will be set to "false" from 2.x onwards. If you wish to keep it to "true", you need to set it explicitly.
[bamarni-bin] The setting "extra.bamarni-bin.forward-command" will be set to "true" from 2.x onwards. If you wish to keep it to "false", you need to set it explicitly.

For reference, see

• https://github.com/bamarni/composer-bin-plugin/tree/1.8.2#bin-links-bin-links
• https://github.com/bamarni/composer-bin-plugin/tree/1.8.2#forward-command-forward-command

Author's checklist

• [x] Follow the Contribution Guide
• [ ] New features and changes are documented

Summary of changes

Review checklist

• [x] All checks have passed
• [ ] Changes are added to the CHANGELOG.md
• [ ] Changes are approved by maintainer

[localheinz]

Thank you, @bram-pkg!