add oauth when jwt subject is available

[muhammadn]

Describe your changes

• Previously we remove including OAuth information as it always send oauth JWT Subject even though the user token does not exist, causing failure to send logging to firetail.

This PR adds it back and ensure that all keys with empty (nil) values are discarded.

• Update critical vulnerability to rails example, not that important but still just to be safe.

Issue ticket number and link

Checklist before requesting a review

• I have resolved any merge conflicts
• I have run tests locally and they pass
• I have linted and auto-formatted the code
• If there is new or changed functionality, I have added/updated the tests
• If there is new or changed functionality, I have added/updated the documentation