server/v2: e2e/system tests

[tac0turtle]

Evaluate migrating e2e tests to system tests so we can use app v1 and v2 without needing to do hacks with build flags to attempt to make it work.

Goals:

• Find an e2e test from tests/e2e that looks like a system test.
• Rewrite it as a system test and verify it runs with v1 and v2 (CI does that)
• Delete the old e2e test.

To check:
Remember: only migrate the applicable ones.

• Add System Test to x/accounts #21954
• tests/e2e/auth to system tests #21926
• tests/e2e/authz to system tests #21609
• tests/e2e/bank to system tests #21581
• migrate tests/e2e/baseapp to tests/integration #22356
• tests/e2e/client to system tests #21923
• tests/e2e/distribution to system tests #21854
• tests/e2e/genutil to system tests #21871
• tests/e2e/gov to system tests #21872
• tests/e2e/group to system tests #22219
• tests/e2e/mint to system tests #22291
• test/e2e/staking to system tests #21874
• tests/e2e/tx to system tests #22038
• Migrate remaining tests from tests/e2e to tests/integration #22358

To Add

• System tests for circuit #22301

[julienrbrt]

I think we are going for a migration to system tests when applicable here right?
re-read the issue, missed a word 🤦🏾