Handle possible list types for batched data_loader implementation of @grpc

[meskill]

In some cases batched request could be resolved to multiple values for every entry of the batched parent value. The logic is already implemented for the @http dataloader depending on the type of the field. See

tailcall/src/core/http/data_loader.rs

Lines 45 to 49 in 23a56b4

	body: if is_list {
	get_body_value_list
	} else {
	get_body_value_single
	},

for reference.

Implement support for list types for the @grpc batched request

[tusharmath]

/bounty $100

[algora-pbc]

💎 $100 bounty • Tailcall Inc.

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Attempt	Started (GMT+0)	Solution
🔴 @ssddOnTop	Sep 24, 2024, 4:02:54 PM	WIP

[algora-pbc]

@ssddOnTop: Reminder that in 1 days the bounty will become up for grabs, so please submit a pull request before then 🙏

[algora-pbc]

The bounty is up for grabs! Everyone is welcome to /attempt #2891 🙌