rpc: add chunked rpc interface (backport #6445)

[mergify]

This is an automatic backport of pull request #6445 done by Mergify.
Cherry-pick of d913406 has failed:

On branch mergify/bp/v0.34.x/pr-6445
Your branch is up to date with 'origin/v0.34.x'.

You are currently cherry-picking commit d9134063e.
  (fix conflicts and run "git cherry-pick --continue")
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Changes to be committed:
	modified:   light/rpc/client.go
	modified:   rpc/client/http/http.go
	modified:   rpc/client/interface.go
	modified:   rpc/client/local/local.go
	modified:   rpc/client/mocks/client.go
	modified:   rpc/client/rpc_test.go
	modified:   rpc/core/env.go
	modified:   rpc/core/types/responses.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   light/proxy/routes.go
	both modified:   node/node.go
	both modified:   rpc/core/net.go
	both modified:   rpc/core/routes.go

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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closes #6706

[lgtm-com]

This pull request introduces 25 alerts when merging 79083e6 into 2c2f511 - view on LGTM.com

new alerts:

• 23 for Expression has no effect
• 2 for Unreachable statement

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (v0.34.x@2c2f511). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             v0.34.x    #6717   +/-   ##
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  Coverage           ?   61.54%           
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  Files              ?      265           
  Lines              ?    27754           
  Branches           ?        0           
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  Hits               ?    17081           
  Misses             ?     9121           
  Partials           ?     1552           

[cmwaters]

LGTM

[cmwaters]

Ah we should have probably added a changelog entry. I can add one when I merge #6720

[tac0turtle]

ah whoops, my bad. Thank you