Remove redundant CMake setup steps in pybind11 workflow

.github/workflows/pybind11.yml

@@ -24,9 +24,6 @@ jobs:
           sudo apt-get update
           sudo apt-get install -y gcc g++
 
-      - name: Set up CMake
-        uses: jwlawson/actions-setup-cmake@v1.10
-
       - name: Test
         run: |
           cd include/pybind11/tests
@@ -43,9 +40,6 @@ jobs:
       - name: Set up MSVC
         uses: ilammy/msvc-dev-cmd@v1
 
-      - name: Set up CMake
-        uses: jwlawson/actions-setup-cmake@v1.10
-
       - name: Test
         run: |
           cd include\pybind11\tests
@@ -65,9 +59,6 @@ jobs:
           echo 'export PATH="/usr/local/opt/llvm/bin:$PATH"' >> ~/.zshrc
           source ~/.zshrc
 
-      - name: Set up CMake
-        uses: jwlawson/actions-setup-cmake@v1.10
-
       - name: Test
         run: |
           cd include/pybind11/tests