chore(deps/composer): bump phpunit/phpunit from 9.5.27 to 9.6.15

[dependabot]

Bumps phpunit/phpunit from 9.5.27 to 9.6.15.

Changelog

Sourced from phpunit/phpunit's changelog.

[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

[9.6.8] - 2023-05-11

Fixed

• #5345: No stack trace shown for previous exceptions during bootstrap

[9.6.7] - 2023-04-14

... (truncated)

Commits

• 05017b8 Prepare release
• 838af84 Merge branch '8.5' into 9.6
• 9652df5 Prepare release
• 3ba3e82 Pin humbug/php-scoper to 0.18.4 for #5596
• 43653e6 Prepare release
• c55b107 Merge branch '8.5' into 9.6
• c14b7dc Prepare release
• 7000410 Merge branch '8.5' into 9.6
• 539165b Revert "Ensure that dependencies are up-to-date"
• 75922e1 Use "composer outdated" instead of "composer show" (because PHPUnit >= 9.6 do...
• Additional commits viewable in compare view

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The following labels could not be found: t-dependencies, pkg-composer.