fix: update workflows to respect matrix node version

[pearigee]

Our workflows are miss configured and as a result are not respecting the node version specified by matrix.

To fix this I have made the following changes:

1. I added a workflow step to explicitly initialize our Node.js environment (using actions/setup-node) that explicitly sets the requested node version from the matrix arguments. This step also configures other helpful items like dependency caching, which may help us performance wise? More testing on this is required.
2. I bumped our pnpm version to 10 to get the latest security and performance fixes. It looks like 10 may be the last version to officially support node 18.

Before fix:

After fix:

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• Make sure to open an issue as a bug/issue before writing your code! That way we can discuss the change, evaluate designs, and agree on the general idea
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• Code coverage does not decrease (if any source code was changed)
• Appropriate docs were updated (if necessary)

Fixes #7289 🦕