CI: Fix macOS python dependencies install step

Don't use the OS python to install dependencies,
but use the one that's installed for the runner itself.
Select it with the python action.

.github/workflows/hosted_runners.yml

@@ -21,7 +21,7 @@ on:
 
   push:
     branches:
-      - 'master'
+      - 'stefano/ci/macos-fix-python-usage'
 
     tags:
       - '*'
@@ -658,20 +658,22 @@ jobs:
           coreutils \
           gnu-sed
 
+    - name: Setup python
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.x'
+        architecture: 'x64'
+
     - name: Install tests dependencies
       id: install_test_deps
       run: |
-        python_root="/usr/local/Frameworks/Python.framework/Versions/Current"
-
-        ${python_root}/bin/pip3 install setuptools \
-                     pexpect==3.3 \
-                     psutil \
-                     timeout_decorator \
-                     six \
-                     thrift==0.11.0 \
-                     osquery
-
-        echo "PYTHON_ROOT=${python_root}" >> $GITHUB_OUTPUT
+        pip3 install setuptools \
+                      pexpect==3.3 \
+                      psutil \
+                      timeout_decorator \
+                      six \
+                      thrift==0.11.0 \
+                      osquery
 
     - name: Install CMake
       shell: bash
@@ -721,7 +723,6 @@ jobs:
           -DCMAKE_BUILD_TYPE:STRING="${{ matrix.build_type }}" \
           -DOSQUERY_BUILD_TESTS=ON \
           -DOSQUERY_NO_DEBUG_SYMBOLS=${{ steps.debug_symbols_settings.outputs.VALUE }} \
-          -DPython3_ROOT_DIR=${{ steps.install_test_deps.outputs.PYTHON_ROOT }} \
           ${{ steps.build_paths.outputs.SOURCE }}
 
     - name: Build the project