ci: adding build dependencies

Author: Alexandre Brito

.github/workflows/pypi.yml

@@ -10,16 +10,13 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - name: Set env
-        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
-      - name: Test
-        run: |
-          echo $RELEASE_VERSION
-          echo ${{ env.RELEASE_VERSION }}
       - name: Set up Python
         uses: actions/setup-python@master
         with:
           python-version: 3.9
+      - name: Installing building dependencies
+        run: |
+          python -m pip install build twine wheel
       - name: Build the project
         run: |
           python -m build