Fix/duplication exception · valory-xyz/IEKit@5f90285

The following actions uses node12 which is deprecated and will be forced to run on node16: codecov/codecov-action@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

Unexpected input(s) 'submodules', valid inputs are ['python-version', 'cache', 'architecture', 'token', 'cache-dependency-path']

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