Update PHPStan packages to v2 (major)

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
phpstan/phpstan-deprecation-rules	^0.12.6 || ^1.0.0 -> ^0.12.6 || ^1.0.0 || ^2.0.0
phpstan/phpstan-strict-rules	^1.5 -> ^1.5 || ^2.0

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Release Notes

phpstan/phpstan-deprecation-rules (phpstan/phpstan-deprecation-rules)

v2.0.0

Compare Source

• 81833b5 - Removed always true PHP_VERSION_ID condition
• f4a969d - Merge branch '1.2.x' into 2.0.x
• 0ccccb1 - selectSingle() is being deprecated
• 392bbe7 - Updates for PHPStan 2.0 changes
• 89572d5 - Merge branch '1.2.x' into 2.0.x
• 398e2e2 - Merge remote-tracking branch 'origin/1.2.x' into 2.0.x
• 4590cf6 - Update build-cs
• 681b2db - Stop testing PHP 7.2 and 7.3
• 0e1d78a - Open 2.0.x

phpstan/phpstan-strict-rules (phpstan/phpstan-strict-rules)

v2.0.0

Compare Source

• a4a6a08 - Remove dead test because of raised min-php version
• b60bffc - Fix
• 5d50bde - Fix
• 0368403 - Fix
• 1721dbf - Fix after PHPStan update
• e208c93 - Fix after PHPStan update
• 63956f7 - Moved illegalConstructorMethodCall rules from phpstan to phpstan-strict-rules
• ad53bd9 - Remove options removed in PHPStan 2.0
• 914b5e3 - Everything from Bleeding Edge enabled
• 988fab9 - Add more separate rule toggles
• e227ffd - Merge remote-tracking branch 'origin/1.6.x' into 2.0.x
• 90006f2 - Merge branch '1.6.x' into 2.0.x
• 1062d48 - Fix
• 5eec39f - Set polluteScopeWithBlock to false
• 8e2c8b0 - Fix deprecations
• 1ccec91 - Remove unnecessary dependency on nikic/php-parser
• f8092f9 - Update build-cs
• f647999 - Stop testing PHP 7.2 and 7.3
• f6fb84e - Open 2.0.x

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[apotek]

This does not trigger any new phpstan scanning errors. It will also not affect actual functionality, so merging in.

[apotek]

Change set is sane, and no negative fallout expected.