aligned with this commit https://github.com/GoogleCloudPlatform/mlops…

[Gitrexx]

Ajay's PR da9736a fixed the bug for running cloud build in the notebook, but not for github GCP cloud build trigger, just to align the changes here

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[Gitrexx]

the last section of this lab-03 is to setup a github gcp cloud build trigger with a new tag pushed, so the cloud build is using the requirements.txt from this repo, so to modify these 2 files as well