Release v1.18.0

AEA:

• Fixes protocol header string regex.
• Adds FIELDS_WITH_NESTED_FIELDS and NESTED_FIELDS_ALLOWED_TO_UPDATE in the base config class.
• Introduces aea test command group:
  • aea test item_type public_id: Run all tests of the AEA package specified by item_type and public_id
  • aea test by-path package_dir: Run all the tests of the AEA package located at package_dir
  • aea test packages: Runs all tests in the packages (local registry) folder.
  • aea test: Runs tests in the tests folder, if present in the agent folder.

Tests:

• Ports tests for the following packages into their respective package folders
  • packages/valory/protocols/acn
  • packages/valory/protocols/tendermint
  • packages/valory/connections/p2p_libp2p/libp2p_node/dht/dhttests
  • packages/open_aea/protocols/signing
  • packages/fetchai/skills/generic_seller
  • packages/fetchai/skills/http_echo
  • packages/fetchai/skills/echo
  • packages/fetchai/skills/erc1155_client
  • packages/fetchai/skills/gym
  • packages/fetchai/skills/erc1155_deploy
  • packages/fetchai/skills/generic_buyer
  • packages/fetchai/protocols/http
  • packages/fetchai/protocols/fipa
  • packages/fetchai/protocols/default
  • packages/fetchai/protocols/state_update
  • packages/fetchai/protocols/ledger_api
  • packages/fetchai/protocols/oef_search
  • packages/fetchai/protocols/contract_api
  • packages/fetchai/protocols/gym
  • packages/fetchai/protocols/tac
  • packages/fetchai/connections/ledger
  • packages/fetchai/connections/http_server
  • packages/fetchai/connections/local
  • packages/fetchai/connections/stub
  • packages/fetchai/connections/gym
  • packages/fetchai/connections/http_client
  • packages/fetchai/contracts/erc1155