composer.json cleanup

Removed some packages which requried by other packages from composer

Added support for both flysystem v1 and v3 in file-based cache drivers

Added support for file cache adapter in Laravel 9 (flysystem v3);
Service provider decides which flysystem classes to use based on installed version of flysystem.
I've tested on Laravel 8 (v1) and Laravel 9 (v3) and it seems to be working fine.

Support for Laravel 9

Added Laravel 9 as supported.
Cannot test it now but lib will work at least with redis. Report issue if something goes wrong.

Support for PHP 8.1

Added support for PHP 8.1 in composer.json

Added support for RedisCluster when using phpredis extension

Updated RedisCacheStore implementation to allow for RedisCluster when using phpredis extension.

Thanks to @J5Dev for this update!

Restored support for Laravel <= 7

• Cache locks support moved to separate classes (with WithLocks suffix).
• Service Provider now detects if locks are supported and creates different pools depending on this flag. This way package can be used in Laravel <= 7.
• Added simple tests for locks

Added memcached support. Refactored tests. Moved to PSR-4.

• Added memcached support.
• PSR-0 replaced by PSR-4 in composer and also classes moved from /src to /. This should not break anything.
• Refactored tests so that it is now possible to run them from inside package (earlier I used a real project to run tests).

Cache locks

• Minimum PHP version now is 7.2.5.
• All drivers added to require-dev in composer.json. For production you still need to require specific package.
• Added support for cache locks.
• Version upped to 6 to represent minimal suported Laravel version, Though it probably will still work in 5.* versions.

Thanks to @Malezha for these changes.

Laravel 8 support and suggests instead of requires

Updated composer.json:

• Added Laravel 8 support
• Cache drivers moved from "require" to "suggest" so that you can pick only those you will actually use

Fixed issue with Laravel scheduler

put, putMany and forever methods now return values from parent:: calls (Thanks to @janich for the fix);