Tweak the periodic integration tests workflow

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 67.69%. Comparing base (3a1237b) to head (92a30a5).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #118 +/- ## ========================================== + Coverage 65.80% 67.69% +1.88% ========================================== Files 12 12 Lines 1778 1786 +8 ========================================== + Hits 1170 1209 +39 + Misses 608 577 -31 ``` | [Flag](https://app.codecov.io/gh/mila-iqia/milatools/pull/118/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mila-iqia) | Coverage Δ | | |---|---|---| | [integrationtests](https://app.codecov.io/gh/mila-iqia/milatools/pull/118/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mila-iqia) | `65.80% <ø> (ø)` | | | [unittests](https://app.codecov.io/gh/mila-iqia/milatools/pull/118/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mila-iqia) | `48.99% <ø> (?)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mila-iqia#carryforward-flags-in-the-pull-request-comment) to find out more.

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