fix: remove trailing whitespace in pr_ete_test.yml

[Copilot]

The lint CI job was failing due to trailing whitespace introduced on the python3 -m pip install --upgrade -r requirements/runtime_cuda.txt line in .github/workflows/pr_ete_test.yml.

Motivation

Fix lint CI failure caused by trim trailing whitespace pre-commit hook detecting a trailing space in the workflow file.

Modification

• Added python3 -m pip install --upgrade -r requirements/runtime_cuda.txt to the Install lmdeploy step in .github/workflows/pr_ete_test.yml, with the trailing whitespace removed.

BC-breaking (Optional)

N/A

Use cases (Optional)

N/A

Checklist

1. Pre-commit or other linting tools are used to fix the potential lint issues.
2. The modification is covered by complete unit tests. If not, please add more unit tests to ensure the correctness.
3. If the modification has a dependency on downstream projects of a newer version, this PR should be tested with all supported versions of downstream projects.
4. The documentation has been modified accordingly, like docstring or example tutorials.