Merge pull request #400 from staticdev/ci/pipx

[github] Install Poetry and Nox using pipx in Tests workflow

Author: staticdev

.github/workflows/tests.yml

@@ -44,12 +44,13 @@ jobs:
 
       - name: Install Poetry
         run: |
-          pip install --constraint=.github/workflows/constraints.txt poetry
+          pipx install --pip-args=--constraint=.github/workflows/constraints.txt poetry
           poetry --version
 
       - name: Install Nox
         run: |
-          pip install --constraint=.github/workflows/constraints.txt nox nox-poetry
+          pipx install --pip-args=--constraint=.github/workflows/constraints.txt nox
+          pipx inject --pip-args=--constraint=.github/workflows/constraints.txt nox nox-poetry
           nox --version
 
       - name: Compute pre-commit cache key
@@ -113,12 +114,13 @@ jobs:
 
       - name: Install Poetry
         run: |
-          pip install --constraint=.github/workflows/constraints.txt poetry
+          pipx install --pip-args=--constraint=.github/workflows/constraints.txt poetry
           poetry --version
 
       - name: Install Nox
         run: |
-          pip install --constraint=.github/workflows/constraints.txt nox nox-poetry
+          pipx install --pip-args=--constraint=.github/workflows/constraints.txt nox
+          pipx inject --pip-args=--constraint=.github/workflows/constraints.txt nox nox-poetry
           nox --version
 
       - name: Download coverage data