fix: -t flag added in pull translation command

[edx-requirements-bot]

The transifex command line tool we use to pull translations introduced a fix that broke the existing translation pulls. So, in order to fix this, I've updated thecommand to use the flag along with the existing flags. To get the more context on this, please have a look into this issue

[codecov[bot]]

Codecov Report

Base: 100.00% // Head: 100.00% // No change to project coverage :thumbsup:

Coverage data is based on head (ea5848d) compared to base (d2723e5). Patch has no changes to coverable lines.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #285 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 110 110 Lines 1264 1264 Branches 248 248 ========================================= Hits 1264 1264 ``` Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=openedx). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=openedx)

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