Updating backup and restore script to use new usage pattern

[crupakheti]

…i documentation

What type of PR is this? (check all applicable)

• [ ] Refactor
• [ ] Feature
• [x] Bug Fix
• [ ] Optimization
• [ ] Documentation Update
• [ ] Dependency Update
• [x] Release

Description

Updating backup_metadata and restore_metadata to use the framework usage pattern. Updates to the PYPI documentation to include sample DAG runs.

Related Tickets & Documents

• Related Issue #
• Closes #

Linting

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• [ ] No, I need help with linting

Testing

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• [x] Yes
• [ ] No, I need help with writing tests

Documentation

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• [x] Yes
• [ ] No, README does not need any changes for this PR

Changelog

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• [x] Yes
• [ ] No, I need help

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Coverage report

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