Update for release

[ksk-jij]

Description

This PR contains

• change from API_TOKEN to Trusted Publisher feature on PyPI,
• change the name on PyPI,
• change the github actions on to release on the real PyPI.

[Copilot]

Pull Request Overview

This PR prepares the project for release by transitioning to PyPI's Trusted Publisher feature and updating package naming. The changes enable automated publishing to PyPI using OIDC authentication instead of API tokens, and standardize the package name to use hyphens.

• Changed package name from ommx_quantum_benchmarks to ommx-quantum-benchmarks
• Updated GitHub Actions workflow to use Trusted Publisher authentication for PyPI releases
• Simplified installation instructions across documentation files

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
pyproject.toml	Updated package name and added setuptools_scm configuration for releases
.github/workflows/release.yml	Migrated to Trusted Publisher authentication and enabled real PyPI publishing
docs/ja/quickstart.ipynb	Updated installation commands to use new package name
docs/ja/index.ipynb	Updated installation commands to use new package name
docs/en/quickstart.ipynb	Updated installation commands to use new package name
docs/en/index.ipynb	Updated installation commands to use new package name
README.md	Simplified installation instructions to use pip install

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