fixed the raptor example in llama-index-packs by updating the pip ins…

[Riddhimaan-Senapati]

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

fixed the raptor example in llama-index-packs by updating the pip installs. I specifically added llama-index-vector-stores-chroma, chromadb (as the example notebook was not able to run without these installs) and --upgrade transformers(It was downloading an old version of transformers which had to be upgraded to 0.21.00). Without these changes, the notebook was not running when I downloaded it.

Fixes # (issue)

New Package?

Did I fill in the tool.llamahub section in the pyproject.toml and provide a detailed README.md for my new integration or package?

• Yes
• No

There is no new package

Version Bump?

Did I bump the version in the pyproject.toml file of the package I am updating? (Except for the llama-index-core package)

• Yes
• No

Not required due to minor issue, fixing bugs in example code.

Type of Change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

Your pull-request will likely not be merged unless it is covered by some form of impactful unit testing.

• I added new unit tests to cover this change
• I believe this change is already covered by existing unit tests

Suggested Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas.(Not required due to simply updating pip installs in example code)
• I have made corresponding changes to the documentation
• I have added Google Colab support for the newly added notebooks.
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I ran make format; make lint to appease the lint gods

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[Riddhimaan-Senapati]

@tobi @wpiekutowski @xevo @bborn Can one of you guys review my PR? Excited to begin contributing to this repo.