[Dependabot] Update phpunit/phpunit requirement from 8.5.53 to 8.5.54

[dependabot]

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

Release notes

Sourced from phpunit/phpunit's releases.

PHPUnit 8.5.54

Changed

• Use spl_object_id() instead of spl_object_hash() (which will be deprecated in PHP 8.6)
• Use the error suppression operator (@) when calling DeepCopy\DeepCopy::copy() because it uses spl_object_hash() (which will be deprecated in PHP 8.6)

---

Learn how to install or update PHPUnit 8.5 in the documentation.

Keep up to date with PHPUnit:

• You can follow @​phpunit@phpc.social to stay up to date with PHPUnit's development.
• You can subscribe to the PHPUnit Updates newsletter to receive updates about and tips for PHPUnit.

Changelog

Sourced from phpunit/phpunit's changelog.

[8.5.54] - 2026-08-11

Changed

• Use spl_object_id() instead of spl_object_hash() (which will be deprecated in PHP 8.6)
• Use the error suppression operator (@) when calling DeepCopy\DeepCopy::copy() because it uses spl_object_hash() (which will be deprecated in PHP 8.6)

[8.5.53] - 2026-07-06

Changed

• #6797: Adapt code generated for test double of interface with constructor for PHP 8.6

[8.5.52] - 2026-01-27

Changed

• To prevent Poisoned Pipeline Execution (PPE) attacks using prepared .coverage files in pull requests, a PHPT test will no longer be run if the temporary file for writing code coverage information already exists before the test runs

[8.5.51] - 2026-01-24

Changed

• PHPUnit\Framework\MockObject exceptions are now subtypes of PHPUnit\Exception

[8.5.50] - 2025-12-06

• No changes; phpunit.phar rebuilt with PHP 8.4 to work around PHP-Scoper issue #1139

[8.5.49] - 2025-12-01

• No changes; phpunit.phar rebuilt with updated dependencies

[8.5.48] - 2025-09-24

• No changes; phpunit.phar rebuilt with updated dependencies

[8.5.47] - 2025-09-23

• No changes; phpunit.phar rebuilt with updated dependencies

[8.5.46] - 2025-09-14

Changed

• #6366: Exclude __sleep() and __wakeup() from test double code generation on PHP >= 8.5

[8.5.45] - 2025-09-11

Changed

... (truncated)

Commits

• 416a546 Prepare release
• 5a107b8 Use spl_object_id() instead of spl_object_hash() which is deprecated in PHP 8.6
• 752b775 Update dependencies
• bb949f1 Update github-actions
• 4efef5e Update dependency seld/phar-utils to ^1.2.2
• 118edc6 Sync PHP settings
• 1f92751 Make expectation compatible with PHP >= 8.6
• ec9fedf Revert "Split test to handle different error messages in PHP < 8.6 and PHP >=...
• 9753de8 Confgure display_startup_errors=On
• 6f835f8 Update actions/checkout action to v7.0.1
• 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 show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @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: 72.604%. remained the same — dependabot/composer/phpunit/phpunit-8.5.54 into main