Fix wheel version verification (rerun-io#5938)

### What
It broke in rerun-io#5932

### Checklist
* [x] I have read and agree to [Contributor
Guide](https://github.com/rerun-io/rerun/blob/main/CONTRIBUTING.md) and
the [Code of
Conduct](https://github.com/rerun-io/rerun/blob/main/CODE_OF_CONDUCT.md)

- [PR Build Summary](https://build.rerun.io/pr/{{ pr.number }})
- [Recent benchmark results](https://build.rerun.io/graphs/crates.html)
- [Wasm size tracking](https://build.rerun.io/graphs/sizes.html)

.github/workflows/contrib_rerun_py.yml

@@ -104,9 +104,9 @@ jobs:
       - name: Verify built wheel version
         shell: bash
         run: |
-          python3 -m rerun --version
-          which rerun
-          rerun --version
+          pixi run -e wheel-test python -m rerun --version
+          pixi run -e wheel-test which rerun
+          pixi run -e wheel-test rerun --version
 
       - name: Run Python unit-tests
         shell: bash

.github/workflows/reusable_build_examples.yml

@@ -86,9 +86,9 @@ jobs:
       - name: Verify built wheel version
         shell: bash
         run: |
-          pixi run python3 -m rerun --version
-          pixi run which rerun
-          pixi run rerun --version
+          pixi run -e wheel-test python -m rerun --version
+          pixi run -e wheel-test which rerun
+          pixi run -e wheel-test rerun --version
 
       - name: Get sha
         id: get-sha