range has only one src now [pr] (#10100)

* range has only one op now

* fix z3 checker

* ci fix

* needs shell

* try pip ensure update

* that ensurepip is useless

* upgrade pip before cache

* windows happy?

.github/actions/setup-tinygrad/action.yml

@@ -44,6 +44,9 @@ runs:
       uses: actions/setup-python@v5
       with:
         python-version: ${{ inputs.python-version }}
+    - name: Upgrade pip
+      shell: bash
+      run: python -m pip install --upgrade pip
 
     # **** Caching packages ****
     # TODO: key should include input.deps, but it can't since it can't contain commas