Updates starlette to 0.49.1 due to security vulnerability (#4133)

# Description Updates starlette to 0.49.1 due to security vulnerability in the previously used 0.45.3. ## Type of change <!-- As you go through the list, delete the ones that are not applicable. --> - Bug fix (non-breaking change which fixes an issue) ## Checklist - [x] I have read and understood the [contribution guidelines](https://isaac-sim.github.io/IsaacLab/main/source/refs/contributing.html) - [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with `./isaaclab.sh --format` - [ ] I have made corresponding changes to the documentation - [x] My changes generate no new warnings - [ ] I have added tests that prove my fix is effective or that my feature works - [ ] I have updated the changelog and the corresponding version in the extension's `config/extension.toml` file - [ ] I have added my name to the `CONTRIBUTORS.md` or my name already exists there <!-- As you go through the checklist above, you can mark something as done by putting an x character in it For example, - [x] I have done this task - [ ] I have not done this task -->

Author: kellyguo11

source/isaaclab/setup.py

@@ -37,7 +37,7 @@
  # make sure this is consistent with isaac sim version
  "pillow==11.3.0",
  # livestream
- "starlette==0.45.3",
+ "starlette==0.49.1",
  # testing
  "pytest",
  "pytest-mock",