Fix using project-dir with list command and path selector

[gshank]

resolves #8385

Problem

We changed the way we access the contextvar for project_root in #7949, but also needed to add the contextvar to the run method of the list command.

Checklist

• I have read the contributing guide and understand what's expected of me
• I have run this code in development and it appears to resolve the stated issue
• This PR includes tests, or tests are not required/relevant for this PR
• This PR has no interface changes (e.g. macros, cli, logs, json artifacts, config files, adapter interface, etc) or this PR has already received feedback and approval from Product or DX

[codecov]

Codecov Report

Merging #8388 (f7c686d) into main (b7aee3f) will increase coverage by 0.07%.
Report is 5 commits behind head on main.
The diff coverage is 92.85%.

@@            Coverage Diff             @@
##             main    #8388      +/-   ##
==========================================
+ Coverage   86.29%   86.36%   +0.07%     
==========================================
  Files         174      174              
  Lines       25529    25543      +14     
==========================================
+ Hits        22030    22060      +30     
+ Misses       3499     3483      -16     

Flag	Coverage Δ
integration	83.09% <92.85%> (-0.03%)	⬇️
unit	65.23% <7.14%> (+0.05%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
core/dbt/task/list.py	88.69% <92.85%> (+0.20%)	⬆️

... and 7 files with indirect coverage changes

[QMalcolm]

Looks good to me!

As an aside, I wasn't aware of these globals 😂 Adding more things to my hit list 👀