* 1.x:
  Fix license year

… (rosier)

This PR was merged into the 1.x branch.

Discussion
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CI: Bump actions and run tests also on newer php versions

Fixes:
- The `set-output` command is deprecated and will be disabled soon.
- The `save-state` command is deprecated and will be disabled soon.

Commits
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22fa147 CI: Bump actions and run tests also on newer php versions

* 1.x:
  CI: Bump actions and run tests also on newer php versions

This PR was squashed before being merged into the 1.x branch.

Discussion
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CS fixes

I did split this in separate commits to make it easier to review.

I can squash this if you prefer that.

Commits
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f34d820 CS fixes

* 1.x:
  CS fixes

* 1.x:
  Fix CS

PHP 7.1 and PHP 7.2 don't support a comma after a heredoc end (T_END_HEREDOC)

This PR was merged into the 1.x branch.

Discussion
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Fix PHP Parse errors in tests

PHP 7.1 and PHP 7.2 don't support a comma after a heredoc end (T_END_HEREDOC)

Commits
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7e76f08 Fix PHP Parse errors in tests.

* 1.x:
  Fix PHP Parse errors in tests.

…alled (leofeyer)

This PR was submitted for the 2.x branch but it was merged into the 1.x branch instead.

Discussion
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Do not synchronize package.json if symfony/flex is not installed

Just as the project is not configured and no recipes are loaded if symfony/flex is not in the root `composer.json`, the `package.json` should not be synchronized in this case.

Commits
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740bc2f Do not synchronize package.json if symfony/flex is not installed

* 1.x:
  Do not synchronize package.json if symfony/flex is not installed

…(wuchen90)

This PR was submitted for the 2.x branch but it was merged into the 1.x branch instead.

Discussion
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feat: add ability to skip package.json synchronization

For those who doesn't want the package.json synchronization, this PR offers to opt-out this behavior by setting the config below in extra section of composer.json:

```json
{
  "extra": {
    "symfony/flex": {
      "synchronize_package_json": false
    }
  }
}

```

fix #1017

Commits
-------

791e814 feat: add ability to skip package.json synchronization

* 1.x:
  feat: add ability to skip package.json synchronization