ensure pip and uv are both installed

Author: timkpaine

setup/action.yml

@@ -42,7 +42,7 @@ runs:
       if: ${{ inputs.uv != 'true' }}
 
     - name: Install uv
-      uses: astral-sh/setup-uv@v5
+      uses: astral-sh/setup-uv@v6
       with:
         python-version: "${{ inputs.version }}"
         enable-cache: true
@@ -57,7 +57,5 @@ runs:
 
     - name: Install uv as a python package for use of `python -m uv`
       shell: bash
-      run: |
-        uv pip install pip
-        python -m pip install uv
+      run: python -m pip install uv
       if: ${{ inputs.uv == 'true' }}