Feature/mv examples e2e tests

[voluntas]

This pull request includes several changes to the examples directory and the GitHub workflows. The changes aim to streamline the codebase, improve workflow naming consistency, and update dependencies.

Workflow Updates:

• Renamed .github/workflows/examples-e2e-test.yml to .github/workflows/e2e-test.yml and updated the job names for consistency. (.github/workflows/e2e-test.yml)
• Increased the timeout for all jobs from 20 to 30 minutes. (.github/workflows/e2e-test.yml) [1] [2] [3]
• Added additional rye run commands to execute run.py scripts for different operating systems. (.github/workflows/e2e-test.yml) [1] [2] [3]

Dependency and Configuration Updates:

• Updated pyproject.toml to add pillow as a dependency and adjust other dependencies. (examples/pyproject.toml)
• Removed .python-version file. (examples/.python-version)
• Cleaned up .gitignore file to remove unnecessary entries. (examples/.gitignore)

Codebase Simplification:

• Removed unused sample scripts and related configurations from the examples directory. (examples/src/media/recvonly.py, examples/src/media/sendonly.py) [1] [2]
• Merged hideface_sender.py into a more streamlined version and added type ignores for certain imports. (examples/src/hideface_sender.py) [1] [2] [3] [4]

Documentation Updates:

• Simplified the examples/README.md by removing outdated sample descriptions and updating the instructions for running sample code. (examples/README.md) [1] [2]