Build(deps-dev): Bump phpstan/phpstan-deprecation-rules from 1.2.0 to 1.2.1 #1307

Job	Run time
Validate composer (8.1, highest)	35s
Linting (8.1)	17s
Linting (8.2)	18s
Linting (8.3)	14s
UnitTests with PHPUnit (8.1, highest)	22s
UnitTests with PHPUnit (8.2, highest)	19s
UnitTests with PHPUnit (8.3, highest)	13s
Check for Backward Compatibility breaks (8.1, highest)	32s
Install dependencies (8.1, lowest, false)	46s
Check Coding Standards with PHPCS (8.1, highest)	24s
Install dependencies (8.1, highest, false)	24s
Static Code Analysis with PHPStan (8.1, locked)	20s
Install dependencies (8.2, lowest, false)	23s
Static Code Analysis with PHPStan (8.2, locked)	18s
Static Code Analysis with PHPStan (8.3, locked)	16s
Install dependencies (8.2, highest, false)	15s
Install dependencies (8.3, lowest, false)	13s
Install dependencies (8.3, highest, false)	14s
Install dependencies (8.1, locked, false)	24s
Install dependencies (8.2, locked, false)	15s
Install dependencies (8.3, locked, false)	13s
Install dependencies (8.4, highest, true)	36s
Compare results with PHPUnit (8.1, highest)	17s
Code Coverage with PHPUnit (8.1, highest)	26s
Compare results with PHPUnit (8.2, highest)	13s
Code Coverage with PHPUnit (8.2, highest)	16s
Compare results with PHPUnit (8.3, highest)	19s
Code Coverage with PHPUnit (8.3, highest)	14s
	9m 36s

Provide feedback