[DowngradePhp81] Skip check php version with ternary on DowngradeHashAlgorithmXxHashRector (part 1)

[samsonasik]

@kkmuffme this is for check by ternary, that supported by PHPStan via:

        $scope = ScopeFetcher::fetch($funcCall);
        $type = $scope->getPhpVersion()
            ->getType();

        if (! $type instanceof IntegerRangeType) {
            // next todo: check version_compare() and if() usage
            return false;
        }

        return $type->getMin() === 80100;

TODO for next PRs:

• check version_compare()
• check if() usage

Ref rectorphp/rector#9327

[samsonasik]

All checks have passed 🎉 @TomasVotruba I am merging it ;)

Next improvement for version_compare and under if can be in separate PR :)

[samsonasik]

Continue on version_compare on ternary:

• [DowngradePhp81] Skip check version_compare with ternary on DowngradeHashAlgorithmXxHashRector (part 2) #308