Configure Renovate, drop PHP 7.4 support

[renovate]

Welcome to Renovate! This is an onboarding PR to help you understand and configure settings before regular Pull Requests begin.

🚦 To activate Renovate, merge this Pull Request. To disable Renovate, simply close this Pull Request unmerged.

---

Detected Package Files

• composer.json (composer)
• .github/workflows/coding-standards.yml (github-actions)
• .github/workflows/mutation-tests.yml (github-actions)
• .github/workflows/phpunit.yml (github-actions)
• .github/workflows/psalm.yml (github-actions)
• .github/workflows/release-on-milestone-closed.yml (github-actions)

Configuration

🔡 Renovate has detected a custom config for this PR. Feel free to ask for help if you have any doubts and would like it reviewed.

Important: Now that this branch is edited, Renovate can't rebase it from the base branch any more. If you make changes to the base branch that could impact this onboarding PR, please merge them manually.

What to Expect

With your current configuration, Renovate will create 5 Pull Requests:

Update all non-major dependencies

• Schedule: ["at any time"]
• Branch name: renovate/all-minor-patch
• Merge into: 1.4.x
• Upgrade doctrine/coding-standard to ^9.0.2
• Upgrade phpunit/phpunit to ^9.5.26
• Upgrade psalm/plugin-phpunit to ^0.17.0
• Upgrade roave/infection-static-analysis-plugin to ^1.25.0
• Upgrade squizlabs/php_codesniffer to ^3.7.1
• Upgrade vimeo/psalm to ^4.29.0

Update actions/cache action to v3

• Schedule: ["at any time"]
• Branch name: renovate/actions-cache-3.x
• Merge into: 1.4.x
• Upgrade actions/cache to v3

Update actions/checkout action to v3

• Schedule: ["at any time"]
• Branch name: renovate/actions-checkout-3.x
• Merge into: 1.4.x
• Upgrade actions/checkout to v3

Update dependency doctrine/coding-standard to v10

• Schedule: ["at any time"]
• Branch name: renovate/doctrine-coding-standard-10.x
• Merge into: 1.4.x
• Upgrade doctrine/coding-standard to ^10.0.0

Lock file maintenance

• Schedule: ["before 2am"]
• Branch name: renovate/lock-file-maintenance
• Merge into: 1.4.x
• Regenerate lock files to use latest dependency versions

---

❓ Got questions? Check out Renovate's Docs, particularly the Getting Started section.
If you need any further assistance then you can also request help here.

---

Read more about the use of Renovate Bot within ocramius/* projects.

[Ocramius]

PHPDBG seems to leak here: this is to be handled separately, in laminas/laminas-continuous-integration-action#130

[Ocramius]

Ok, fairly sure that mutation tests leak like crazy due to coverage report data collection 🤔

For example:

no-leaks on  renovate/configure via 🐘 v8.1.12 via ❄️  impure (nix-shell) 
❯ ./vendor/bin/phpunit --coverage-text
PHPUnit 9.5.26 by Sebastian Bergmann and contributors.

Runtime:       PHP 8.1.12 with PCOV 1.0.11
Configuration: /home/ocramius/Documents/roave/no-leaks/phpunit.xml.dist
Random Seed:   1667250120

...................F.                                             21 / 21 (100%)

Time: 00:00.215, Memory: 16.00 MB

There was 1 failure:

1) RoaveUnitTest\NoLeaks\PHPUnit\EmptyBaselineMemoryUsageTest::testDoesNotProduceMemoryLeaks
Failed asserting that 12429784 is identical to 12427168.

/home/ocramius/Documents/roave/no-leaks/test/unit/EmptyBaselineMemoryUsageTest.php:27

FAILURES!
Tests: 21, Assertions: 27, Failures: 1.


Code Coverage Report:    
  2022-10-31 21:02:00    
                         
 Summary:                
  Classes: 75.00% (3/4)  
  Methods: 81.82% (9/11) 
  Lines:   96.61% (57/59)

Roave\NoLeaks\PHPUnit\CollectTestExecutionMemoryFootprints
  Methods:  50.00% ( 2/ 4)   Lines:  92.59% ( 25/ 27)
Roave\NoLeaks\PHPUnit\EmptyBaselineMemoryUsageTest
  Methods: 100.00% ( 1/ 1)   Lines: 100.00% (  1/  1)
Roave\NoLeaks\PHPUnit\MeasuredBaselineTestMemoryLeak
  Methods: 100.00% ( 3/ 3)   Lines: 100.00% ( 19/ 19)
Roave\NoLeaks\PHPUnit\MeasuredTestRunMemoryLeak
  Methods: 100.00% ( 3/ 3)   Lines: 100.00% ( 12/ 12)