chore(deps): update dependency orchestra/testbench to v8.6.3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
orchestra/testbench (source)	require-dev	patch	8.6.2 -> 8.6.3

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Release Notes

orchestral/testbench (orchestra/testbench)

v8.6.3

Compare Source

Changes

• Update minimum support for Testbench Core v8.6.2+. (v8.6.1...v8.6.2)

Testbench Changes

Fixes

• Fixes app()->environment() detection when creating application Orchestra\Testbench\Concerns\CreatesApplication outside of PHPUnit.
• Fixes error Undefined array key "autoload-dev" when executing workbench:install command.

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[codecov]

Codecov Report

Merging #37 (3a19071) into master (9f18935) will not change coverage.
Report is 1 commits behind head on master.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #37   +/-   ##
=========================================
  Coverage     83.03%   83.03%           
  Complexity       67       67           
=========================================
  Files            15       15           
  Lines           224      224           
=========================================
  Hits            186      186           
  Misses           38       38