Deprecation notices on PHP 8.4

[v-noskov]

Running library on PHP 8.4, I get these deprecation notices:

Deprecated: Jenssegers\ImageHash\ImageHash::__construct(): Implicitly marking parameter $implementation as nullable is deprecated, the explicit nullable type must be used instead in ./src/ImageHash.php on line 16

Deprecated: Jenssegers\ImageHash\ImageHash::__construct(): Implicitly marking parameter $driver as nullable is deprecated, the explicit nullable type must be used instead in ./src/ImageHash.php on line 16

[v-noskov]

It seems that #92 resolves the issue