Hotfix: libraries installation in Colab notebooks

[Lookatator]

This PR fixes the problem of dependencies in Colab notebooks by installing qdax[cuda12] at the top of every notebook

It also fixes the description of the DCRL algorithm in its notebook.

You can use this link to test the fixed DCRL notebook.

Checks

• N/A a clear description of the PR has been added
• N/A sufficient tests have been written
• N/A relevant section added to the documentation
• N/A example notebook added to the repo
• N/A clean docstrings and comments have been written
• N/A if any issue/observation has been discovered, a new issue has been opened

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.50%. Comparing base (8c9d2ec) to head (a27fb7c).

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Additional details and impacted files

@@           Coverage Diff           @@
##             main     #193   +/-   ##
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  Coverage   92.50%   92.50%           
=======================================
  Files         128      128           
  Lines        7983     7983           
=======================================
  Hits         7385     7385           
  Misses        598      598           

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