Update precommit.yml

Author: jagapiou

.github/workflows/precommit.yml

@@ -41,13 +41,13 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: install infrastructure (Linux)
-        if: ${{ matrix.os ~= ubuntu-* }}
+        if: startsWith( matrix.os, 'ubuntu-' )
         run: |
           sudo apt-get install python3-dev python3-numpy python3-packaging
           sudo ln -s /usr/lib/llvm-10/include/c++/v1 /usr/include/c++/v1
 
       - name: install infrastructure (MacOS)
-        if: ${{ matrix.os ~= macos-* }}
+        if: startsWith( matrix.os, 'macos-' )
         run: sudo -H pip3 install numpy packaging
 
       - name: show bazel setup