Update precommit.yml

Author: jagapiou

.github/workflows/precommit.yml

@@ -49,8 +49,8 @@ jobs:
         run: |
           sudo apt-get install \
               python${{ matrix.python-version }}-dev \
-              python${{ matrix.python-version }}-numpy \
-              python${{ matrix.python-version }}-packaging
+              python3-numpy \
+              python3-packaging
           sudo ln -s /usr/lib/llvm-10/include/c++/v1 /usr/include/c++/v1
 
       - name: install infrastructure (MacOS)