Update precommit.yml

Author: jagapiou

.github/workflows/precommit.yml

@@ -57,13 +57,10 @@ jobs:
         if: startsWith( matrix.cfg.os, 'macos-' )
         run: |
           brew --version
-          brew unlink python3
-          python3 --version
           brew install python@${{ matrix.python-version }}
           brew unlink python3
           brew link --force python@${{ matrix.python-version }}
-          python3 --version
-          alias python3=python${{ matrix.python-version }}
+          export PATH=/usr/local/bin:$PATH
           python3 --version
           brew install python-packaging
           brew install numpy