Bump phpstan/phpstan from 1.9.5 to 1.9.6

Bumps phpstan/phpstan from 1.9.5 to 1.9.6.

Release notes

Sourced from phpstan/phpstan's releases.

1.9.6

Improvements 🔧

• Show combined memory usage in parallel mode (#2027), #4683, thanks @​janedbal!

Bugfixes 🐛

• One-part encapsed string is correctly converted to string (https://github.com/phpstan/phpstan-src/commit/dc77608ee9ab22e352cd3df60ce2bc2d8d135abc), #8635
• Conditional expressions - do not take conclusions about identical variable in assignment (https://github.com/phpstan/phpstan-src/commit/cde53d19e9b4edf81f4c469b7f2a2c3634004d86), #8625, #8621

Commits

• ef38a25 PHPStan 1.9.6
• 0fa1f65 Updated PHPStan to commit 255691850a054a52f0a2c20e6ab4c0bc5e59dfdb
• e394799 Updated PHPStan to commit cde53d19e9b4edf81f4c469b7f2a2c3634004d86
• 64a533c Updated PHPStan to commit dc77608ee9ab22e352cd3df60ce2bc2d8d135abc
• cce0885 Updated PHPStan to commit 1506ba92822a2f56559035b36a111bb02060cb17
• See full diff in compare view

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