Update precommit.yml

Author: jagapiou

.github/workflows/precommit.yml

@@ -48,7 +48,7 @@ jobs:
       - name: install infrastructure (Linux)
         if: startsWith( matrix.cfg.os, 'ubuntu-' )
         run: |
-           sudo ln -s /usr/lib/llvm-10/include/c++/v1 /usr/include/c++/v1
+          sudo ln -s /usr/lib/llvm-10/include/c++/v1 /usr/include/c++/v1
 
       - name: Set up Python ${{ matrix.python-version }}
         id: setup-python