Public API methods removed by mistake when introducing RedisJSON

[tishun]

Bug Report

See redis/lettucemod#62
See #3054
See #2933

The implementation of the RedisJSON commands introduced a new parser abstraction.
It is required to construct certain objects from the public API, but it used to not be part of the contract.

Current Behavior

The implementation of the RedisJSON commands introduced a new parser abstraction.
It is required to construct certain objects from the public API, but it used to not be part of the contract.

Expected behavior/code

Similarly to #3054 we need to restore the missing constructors and use the default parser.

Environment

• Lettuce version(s): 6.5.1.RELEASE, 6.5.0.RELEASE
• Redis version: any

Possible Solution

As a temporary workaround the DEFAULT_JSON_PARSER could be provided, see #3065