fix(Shard): add env, execArgv, and argv for worker-based shards

[catplvsplus]

Please describe the changes this PR makes and why it should be merged:
Adds env, execArgv, argv to worker thread creation options. This allows the ShardingManagerOptions#execArgv, ShardingManagerOptions#shardArgs and Shard#env to be used not only by the child-process based shards.

Status and versioning classification:

• Code changes have been tested against the Discord API, or there are no code changes
• I know how to update typings and have done so, or typings don't need updating

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[almeidx]

These doc comments need updating

discord.js/packages/discord.js/src/sharding/Shard.js

Lines 51 to 61 in f623e7a

	/**
	* Arguments for the shard's process (only when {@link ShardingManager#mode} is `process`)
	* @type {string[]}
	*/
	this.args = manager.shardArgs ?? [];
	/**
	* Arguments for the shard's process executable (only when {@link ShardingManager#mode} is `process`)
	* @type {string[]}
	*/
	this.execArgv = manager.execArgv;

Resolved