Fix black in release yaml (#431)

Removing black in release.yml as black check is already done in
build.yml

(cherry picked from commit 3ae074b219186e90fa9ee0104dd11ddc5a527bd1)

.github/workflows/release.yml

@@ -19,12 +19,7 @@ jobs:
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:
-        python-version: ${{ matrix.python-version }}
-    - name: black
-      uses: psf/black@stable # Black
-      with:
-        version: "22.6.0"
-        options: "--check --extend-exclude tests/escript/scripts/"
+        python-version: 3.7
     - name: Setup env
       run: |
         python -m pip install --upgrade pip