Update phpunit/phpunit requirement from ^9.5.21 to ^9.6.16

[dependabot]

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

Changelog

Sourced from phpunit/phpunit's changelog.

[9.6.16] - 2024-01-19

Fixed

• #5516: Assertions that use the LogicalNot constraint (assertNotEquals(), assertStringNotContainsString(), ...) can generate confusing failure messages
• #5666: --no-extensions CLI option does not work
• #5673: Confusing error message when migration of a configuration is requested that does not need to be migrated

[9.6.15] - 2023-12-01

Fixed

• #5596: PHPUnit\Framework\TestCase has @internal annotation in PHAR

[9.6.14] - 2023-12-01

Added

• #5577: --composer-lock CLI option for PHAR binary that displays the composer.lock used to build the PHAR

[9.6.13] - 2023-09-19

Changed

• The child processes used for process isolation now use temporary files to communicate their result to the parent process

[9.6.12] - 2023-09-12

Changed

• #5508: Generate code coverage report in PHP format as first in list to avoid serializing cache data

[9.6.11] - 2023-08-19

Added

• #5478: assertObjectHasProperty() and assertObjectNotHasProperty()

[9.6.10] - 2023-07-10

Changed

• #5419: Allow empty <extensions> element in XML configuration

[9.6.9] - 2023-06-11

Fixed

• #5405: XML configuration migration does not migrate whitelist/file elements
• Always use X.Y.Z version number (and not just X.Y) of PHPUnit's version when checking whether a PHAR-distributed extension is compatible

... (truncated)

Commits

• 3767b2c Prepare release
• 6eb6946 Update ChangeLog
• 17e0c64 Fix
• 76791ba Remove superfluous code
• 0bf4d90 Revert "Store schema versions for which the validation failed"
• 05ae98b Store schema versions for which the validation failed
• 3d0024b Narrow types
• 5dbc551 Try to validate configuration file against all known schema definitions befor...
• 68bf9de Add missing schema files
• d4e4655 Implement SchemaFinder::available()
• Additional commits viewable in compare view

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[dependabot]

Superseded by #131.