Install pip on build runners

Author: ssbarnea

.github/actions/build-test/action.yml

@@ -26,6 +26,7 @@ runs:
       run: |
         platform=${{ matrix.platform }}
         echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
+        sudo apt install -y python3-pip python3-build pipx
 
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v3
@@ -37,7 +38,7 @@ runs:
       shell: bash
       id: ansible-builder-install
       run: |
-        python3 -m pip install -U ansible-builder build
+        python3 -m pipx install --force ansible-builder
         python3 -m build --outdir final/dist/ --wheel
 
     - name: Create a build context and Containerfile for base EE