Update phpstan/phpstan requirement from ^1.7 to ^1.8

[dependabot[bot]]

Updates the requirements on phpstan/phpstan to permit the latest version.

Release notes

Sourced from phpstan/phpstan's releases.

1.8.0

Major new features 🚀

• Collectors - allows writing custom rules that target the whole project
  • Read more: https://phpstan.org/developing-extensions/collectors
• New rememberPossiblyImpureFunctionValues config parameter (defaults to true) (https://github.com/phpstan/phpstan-src/commit/50ed38f04de93b4d0ea9573d0a4789853a4b9f32), #7529 * Read more: https://phpstan.org/config-reference#rememberpossiblyimpurefunctionvalues

Bleeding edge 🔪

• Check that each trait is used and analysed at least once - level 4 (https://github.com/phpstan/phpstan-src/commit/c4d05276fb8605d6ac20acbe1cc5df31cd6c10b0)
• Check that PHPStan class in class constant fetch is covered by backward compatibility promise (https://github.com/phpstan/phpstan-src/commit/9e007251ce61788f6a0319a53f1de6cf801ed233)

If you want to see the shape of things to come and adopt bleeding edge features early, you can include this config file in your project's phpstan.neon:

includes:
    - vendor/phpstan/phpstan/conf/bleedingEdge.neon

Of course, there are no backwards compatibility guarantees when you include this file. The behaviour and reported errors can change in minor versions with this file included. Learn more

Improvements 🔧

• Type a ranged value for filter_var(FILTER_VALIDATE_INT) (#1443), #7494, thanks @​zonuexe!
• Allow BooleanAnd and BooleanOr as standalone expressions with right sides always false (https://github.com/phpstan/phpstan-src/commit/f9374e74beec7082228454693dcdc14000070266), #2741
• Added @api annotation to NodeScopeResolver::processStmtNodes() (#1464), thanks @​vojtech-dobes!
• Add ClassReflection->is() shortcut (#1468), thanks @​janedbal!
• Force update of the PHPStan Pro PHAR in case of crash (https://github.com/phpstan/phpstan-src/commit/b95606ec291a7cf926ca757e544bfa089da950aa)
• Intersect optimization for large unions (#1471), thanks @​neclimdul!
• Update phpdoc-parser (https://github.com/phpstan/phpstan-src/commit/7aa19e02c60c75961333d99cfb5c4704796d6e55)
  • Simplify parsing of type alias import (phpstan/phpdoc-parser#137), thanks @​jiripudil!
  • Support @template-contravariant tags (phpstan/phpdoc-parser#140), thanks @​autaut03!

Bugfixes 🐛

• Prevent crashing for negative bit shifts (#1447), #7490, thanks @​rvanvelzen!
• Fix infinite recursion for template intersection type accepts() (#1450), #7500, thanks @​rvanvelzen!
• Run with parallel runner only when proc_open is not disabled (#1451), #7488, thanks @​mvorisek!
• Suppress is_file warnings in bin/phpstan (#1466), thanks @​mvorisek!
• Fix specifying types for chained assignments (#1473), #7142, thanks @​rvanvelzen!
• Consider autoloaders passed in -a (https://github.com/phpstan/phpstan-src/commit/78016fe92840c02a5981f4ab2ea28fc2d3e49f27)

Function signature fixes 🤖

... (truncated)

Commits

• b7648d4 PHPStan 1.8.0
• e08eff5 Collectors docs
• f7bea8d rememberPossiblyImpureFunctionValues docs
• 5fe9a5d Updated PHPStan to commit 59fb0a3b23c91e5b736c7b67d8a9fd075fc08211
• 07b9dbe Update update-playground-runner.yml
• e667a0b Skip phpstan-doctrine on PHP 7.2
• 5f76cd2 Updated PHPStan to commit 78b12fa8fb276bb3594e1738ba92f8b3b12cdcd2
• 5a8ccdb Update Symplify baseline
• adb8acd Open 1.8-dev
• 60baecd Prepare for 1.8.x by disabling some workflows on 1.7.x
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

[coveralls]

Coverage remained the same at 100.0% when pulling f2cd6d3492d23fa6924313b7e9929e9985a11398 on dependabot/composer/phpstan/phpstan-tw-1.8 into bc7391c313d2266fc24c23d99b775bb40b114525 on master.