This PR fixes an issues where the commands returned from context server
extensions were being used as-is instead of interpreting them relative
to the extension's work dir.

Release Notes:

- Fixed an issue with context server paths not being interpreted
relative to the extension's work dir.

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Co-authored-by: Max Brunsfeld <maxbrunsfeld@gmail.com>
Co-authored-by: Thomas Mickley-Doyle <tmickleydoyle@gmail.com>