Disable dependabot

[RafaelWO]

Description

This PR disables automatic PRs by dependabot since it mostly just clutters the repository activity. Dev dependencies can be updated manually within one commit instead of one PR per library.

See also Disabling Scheduled Dependency Updates

Changes

• 🔥 Remove dependabot.yml
• 📝 Remove dependabot PRs for lockfile updates from CHANGELOG
• 📝 Update release docs (remove dependabot)
• ⬆️ Update dependencies in poetry lock file
• 🔧 Increase expiration date of jinja vulnerability

Related Issue

n/a

Type of Change

• 📚 Examples / docs / tutorials / dependencies update
• 🔧 Bug fix (non-breaking change which fixes an issue)
• 🥂 Improvement (non-breaking change which improves an existing feature)
• 🚀 New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to change)
• 🔐 Security fix
• 🔖 Release

Checklist

• I've read the CODE_OF_CONDUCT.md document.
• I've read the CONTRIBUTING.md guide.
• I've updated the code style using make codestyle.
• I've written tests for all new methods and classes that I created.
• I've written the docstring in Google format for all the methods and classes that I used.