Bump to PHPStan 1.11

[TomasVotruba]

No description provided.

[samsonasik]

PHPStan has notice,

Run vendor/bin/phpstan analyse --ansi --error-format symplify
Note: Using configuration file /home/runner/work/rector-src/rector-src/phpstan.neon.
⚠️  You're using a deprecated config option checkGenericClassInNonGenericObjectType ⚠️️

It's strongly recommended to remove it from your configuration file
and add the missing generic typehints.

If you want to continue ignoring missing typehints from generics,
add missingType.generics error identifier to your ignoreErrors:

parameters:
	ignoreErrors:
		-
			identifier: missingType.generics

The config needs to be updated, like this:

https://github.com/codeigniter4/CodeIgniter4/blob/f927928aaf42a0646301c629887d86ee913f84f2/phpstan.neon.dist#L34-L36

see example PR:

• chore: Bump to phpstan v1.11 codeigniter4/CodeIgniter4#8891

[samsonasik]

PR title need to be changed to PHPStan 1.11 instead of PHPStan 11

[samsonasik]

I created separate PR to fix PHPStan notice on PHPStan 1.11:

• [PHPStan] Fix missingType.generics notice on phpstan.neon on PHPStan 1.11 #5888

[samsonasik]

Let's give it a try, thank you @TomasVotruba