[MINOR] Add quotes to fix erroneous pip install command in SDP Prog Guide

[suhuruli]

What changes were proposed in this pull request?

• Add quotes around the pip install command in the SDP Programming Guide.

Why are the changes needed?

• In the programming guide, the pip install pyspark[pipelines] command errors out on Mac Terminal without quotes. The quotes don't affect the command on other bash terminals while ensuring it works on the Mac Terminal OOB.
• Also just affects the latest Spark version since SDP is in 4.1.x.

Does this PR introduce any user-facing change?

• Yes - it changes the SDP programming guide

How was this patch tested?

• Simple docs change, tested markdown rendering to ensure no styling errors were found

Was this patch authored or co-authored using generative AI tooling?

• No

[gaogaotiantian]

I think this is a good change. zsh does not take raw [] well so it breaks without quotes. Other projects (FastAPI, pandas) are using quotes in their docs too. It's easier for the users to just copy/paste the line without investigating failures.

However, I think if we are trying to fix it, we should fix them all. I did a quick search in our docs and found a few other places that use pip install pyspark[*] without quotes. @suhuruli could you fix them all?

[suhuruli]

Happy to go fix this everywhere and update my PR!