fix: Misc minor issues in image-environment-factory and windows docker

[AndrewKahr]

Changes

• Remove GITHUB_WORKSPACE from image-environment-factory.ts
• Fix windows workdir path in docker run command

Checklist

• Read the contribution guide and accept the code of conduct
• Readme (updated or not needed)
• Tests (added, updated or not needed)

[github-actions]

[codecov-commenter]

Codecov Report

Merging #477 (40f4e3b) into main (2a32a9d) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #477   +/-   ##
=======================================
  Coverage   36.61%   36.61%           
=======================================
  Files          72       72           
  Lines        2734     2734           
  Branches      507      507           
=======================================
  Hits         1001     1001           
  Misses       1731     1731           
  Partials        2        2           

Impacted Files	Coverage Δ
src/model/docker.ts	11.62% <ø> (ø)
src/model/image-environment-factory.ts	7.14% <ø> (ø)