message: fix slack notification job dependency
diff: @@ -286,8 +286,6 @@ workflows:
  - test
  - slack/approval-notification:
  mentions: 'U011J7RCEFQ,U011KKL1L4B'
  - requires:
  - - approve_mainnet_deploy
  - mainnet_deploy:
  requires:
  - approve_mainnet_deploy
  