Update workflows

Author: eel76-hmi

.github/workflows/tests.yml

@@ -24,9 +24,6 @@ jobs:
         cxx_compiler: ${{ fromJSON(inputs.compilers) }}
 
     steps:
-    - name: Checkout
-      uses: actions/checkout@v4
-
     - name: Setup build directory
       id: strings
       shell: bash