Fix escrow proto E2E (backport #3517)

[mergify]

This is an automatic backport of pull request #3517 done by Mergify.
Cherry-pick of 1006426 has failed:

On branch mergify/bp/release/v7.1.x/pr-3517
Your branch is up to date with 'origin/release/v7.1.x'.

You are currently cherry-picking commit 1006426c.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   modules/apps/transfer/keeper/genesis.go
	modified:   modules/apps/transfer/keeper/genesis_test.go
	modified:   modules/apps/transfer/keeper/grpc_query_test.go
	modified:   modules/apps/transfer/keeper/keeper_test.go
	modified:   modules/apps/transfer/keeper/migrations.go
	modified:   modules/apps/transfer/keeper/migrations_test.go
	modified:   modules/apps/transfer/keeper/relay_test.go
	modified:   modules/apps/transfer/types/query.pb.go
	modified:   proto/ibc/applications/transfer/v1/query.proto

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by us:   e2e/tests/transfer/base_test.go
	deleted by us:   e2e/testsuite/grpc_query.go
	both modified:   modules/apps/transfer/keeper/grpc_query.go
	both modified:   modules/apps/transfer/keeper/keeper.go
	both modified:   modules/apps/transfer/keeper/relay.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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[colin-axner]

Thank you!