Fix Makefile to run make docker-run

[tatiana]

Fixes the following errors that popped up when trying to run make docker-run:

(venv) ➜  dag-factory git:(release-0.2.0) ✗ make build-whl
cd examples && ln -s ../dev/dags dags
ln: dags/dags: File exists
make: *** [build-whl] Error 1

And

(venv) ➜  dag-factory git:(release-0.2.0) ✗ make docker-run 
cd dev
python3 -m build --outdir dev/include/
/Users/tati/Code/dag-factory/venv/bin/python3: No module named build
make: *** [build-whl] Error 1

[pankajkoti]

Thanks for fixing this, Tatiana!

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.96%. Comparing base (dfd46b8) to head (06042c7).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #271   +/-   ##
=======================================
  Coverage   93.96%   93.96%           
=======================================
  Files           8        8           
  Lines         630      630           
=======================================
  Hits          592      592           
  Misses         38       38           

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