feat(e2e): add integration tests (backport #100)

[mergify]

This is an automatic backport of pull request #100 done by Mergify.
Cherry-pick of 454d2e5 has failed:

On branch mergify/bp/release/v1.x.x/pr-100
Your branch is up to date with 'origin/release/v1.x.x'.

You are currently cherry-picking commit 454d2e5.
  (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:   .gitignore
	renamed:    contrib/images/pob.integration.Dockerfile -> contrib/images/block-sdk.integration.Dockerfile
	modified:   go.mod
	deleted:    go.work
	renamed:    tests/integration/pob_integration_test.go -> tests/integration/block_sdk_integration_test.go
	renamed:    tests/integration/pob_suite.go -> tests/integration/block_sdk_suite.go
	modified:   tests/integration/chain_setup.go
	modified:   tests/integration/go.mod
	modified:   tests/integration/go.sum

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	both modified:   .github/workflows/test.yml
	both modified:   Makefile
	deleted by them: go.work.sum
	both modified:   x/builder/module.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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