[2.x] Merging develop (laravel#171)

* Update composer.json

* [develop] Adds Symfony 7 support (laravel#169)

* Adds Symfony 7 support

* Adjusts workflow

* Adjusts composer

* Uses only "^0.12"

* Uses `0.11.1` for PHP 7.2

---------

Co-authored-by: Dries Vints <[email protected]>

[2.x] Remove unused `orchestra/testbench` deps (laravel#166)

* [2.x] Remove unused `orchestra/testbench` deps

This opens up the opportunity to require and run `tinker` directly from a package using `orchestra/testbench`.

```bash
php vendor/bin/testbench package:discover
php vendor/bin/testbench tinker
```

* wip

* Apply fixes from StyleCI

---------

Co-authored-by: StyleCI Bot <[email protected]>

Cast ProcessResult objects (laravel#159)

Laravel v10 support (laravel#158)

* Update composer.json

* Update tests.yml

* Update tests.yml

fix: set raw output using `--execute` (laravel#155)

Update update-changelog.yml

Update TinkerCommand.php

Merge pull request laravel#139 from laravel/psysh-update

[2.x] Prepare for Laravel v9

Update CHANGELOG.md

Update CHANGELOG.md