Update mockery/mockery requirement from 1.6.12 to 1.6.15

[dependabot]

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

Release notes

Sourced from mockery/mockery's releases.

1.6.15

What's Changed

• Fix partial mocks skipping real __construct and __clone by @​lazerg in mockery/mockery#1515
• Changelog v1.6.15 by @​ghostwriter in mockery/mockery#1516

Full Changelog: mockery/mockery@1.6.14...1.6.15

Changelog

Sourced from mockery/mockery's changelog.

[1.6.15] - 2026-08-19

Fixed

• 1515: Fix partial mocks skipping real __construct and __clone

[1.6.14] - 2026-08-18

Changed

• 1512: Allow mocking __clone magic method

Fixed

• 1509: Fix str_* polyfills documenting non-empty-string parameters

[1.6.13] - 2026-08-14

Added

• 1505: Add PHPUnit extension for Mockery
• 1451: Add withAndOthers expectation shorthand

Changed

• 1495: Do not return from constructors/destructors

Fixed

• 1506: Fix Mock::shouldNotReceive() ignoring additional arguments
• 1503: Fix mocking a class with an overridden return type
• 1502: Fixed Generics DocComments & readonly class mock handling
• 1474: Mock demeter chains and fluent interface methods with static return type
• 1454: Fixed invalid variadic $args parameters
• 1450: Phpunit integration test listener false positive
• 1449: Handle ReflectionException when resolving named arguments
• [1448: [PHP/8.0] Resolve issue with named parameters](mockery/mockery#1448)
• 1441: Fix Undefined Array Key in Mockery withArgs for PHP 8.2
• 1423: Properly Handle Initialization Errors and Ensure Accurate 'Failed Expectation' Messages

[1.6.12] - 2024-05-15

Changed

• 1420: Update psalm-baseline.xml
• 1419: Update e2e-test.sh
• 1413: Upgrade phar tools and phive.xml configuration

Fixed

... (truncated)

Commits

• 967a801 Changelog v1.6.15 (#1516)
• 44f4967 Fix partial mocks skipping real __construct and __clone (#1515)
• d5362ea Changelog v1.6.14 (#1513)
• c35d268 Allow mocking __clone magic method (#1512)
• 0e01466 Fix str_* polyfills documenting non-empty-string parameters (#1509)
• 9cb5441 Changelog v1.6.13 (#1508)
• 8f28a25 Fix psalm issues and bump RTD to Ubuntu 24.04 (#1507)
• 7b65b4f Fix Mock::shouldNotReceive() ignoring additional arguments (#1506)
• 4bc305a Add PHPUnit extension for Mockery (#1505)
• 396bc47 Add PHPUnit EndToEnd Tests (#1504)
• Additional commits viewable in compare view