chore: Update pixi log level

Author: lewisjared

.github/actions/setup/action.yml

@@ -14,11 +14,7 @@ runs:
       with:
         pixi-version: "latest"
         cache: true
-    - name: Install the project
-      shell: bash
-      run: |
-        # Only installs if the lock file is up-to-date with the manifest
-        pixi install --locked -v
+        log-level: "vvv"
     - name: Cache downloaded ESGF data
       uses: actions/cache@v4
       if: ${{ inputs.cache-esgf == 'true' }}