<issue_start><issue_comment>Title: Plant infrastructure for LIMA_PROTOCOL_VERSION
username_0: https://www.pivotaltracker.com/story/show/166205915
<issue_comment>username_1: @username_0 You may want to cherry-pick some CI fixes from https://github.com/aeternity/aeternity/pull/2467
<issue_comment>username_1: From https://circleci.com/gh/aeternity/aeternity/36699#tests/containers/0
```
===> Command 'ct-latest' not found
make: *** [smoke-test-run] Error 1
```
<issue_comment>username_1: From docker_system_smoke_tests job https://circleci.com/gh/aeternity/aeternity/36815 after having added `ct-latest` target:
```
===> Command 'ct-latest' not found
```

So it seems that `machine_build_cache_key` needs bump (v6 -> v7).
<issue_comment>username_1: From test_fortuna job https://circleci.com/gh/aeternity/aeternity/36805
```
%%% aehttp_contracts_SUITE ==> fate.environment_contract_fate: FAILED
%%% aehttp_contracts_SUITE ==> {max_reached,
    [{aecore_suite_utils,mine_blocks_until_txs_on_chain,4,
```

So it seems that that test shall not run for Fortuna.
<issue_comment>username_1: CI failure seems [unrelated to PR](https://www.pivotaltracker.com/story/show/163696685/comments/202976669).
<issue_comment>username_1: Updated wiki:
[ct -> ct-latest](https://github.com/aeternity/aeternity/wiki/Integration-Testing/_compare/416209d0e235e632ccf18629b508ddeba0c007fc...be19dd97f737d88e61e5545be26cef2056aa9bbf)
[eunit -> eunit-latest](https://github.com/aeternity/aeternity/wiki/Unit-Testing/_compare/cc0aa15ca407cf2ca1f5d6e4bd8552e155640ff9...74fd030edbdbbcecbf402e5671128876787c54af)