chore: add dependabot configuration

[danieyal]

This pull request adds a .github/dependabot.yml configuration file to enable automated dependency updates for both Python packages and GitHub Actions workflows. Dependabot is now set up to check for updates weekly and open pull requests against the master branch.

Dependency management setup:

• Added .github/dependabot.yml to configure Dependabot for weekly updates of pip (Python) dependencies and GitHub Actions, with cooldown periods set to 7 days for both default and major version updates.

Summary by CodeRabbit

• Chores
  • Added automated weekly maintenance checks to help keep project tooling and package updates current.
  • Configured a short waiting period before updates are proposed, supporting more stable update management.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: ebf14a9d-1cb5-40cb-b839-213f36443713

📥 Commits

Reviewing files that changed from the base of the PR and between 3fb557f and 3a42db5.

📒 Files selected for processing (1)

• .github/dependabot.yml

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📝 Walkthrough

Walkthrough

Adds a Dependabot v2 configuration for weekly pip and GitHub Actions updates targeting master, with a seven-day default cooldown.

Changes

Dependency automation

Layer / File(s)	Summary
Dependabot update schedules .github/dependabot.yml	Configures weekly Dependabot checks for Python packages and GitHub Actions in the repository root, targeting master with a seven-day cooldown.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: adding Dependabot configuration.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch add-dependabot

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