Release 0.9.0 about deptry

[fpgmaas]

Maybe we can change

Now, it will only guess the module name if the package does not provide the information.

to

Now, it will only guess the module name if the package does not provide the information and no mapping has been provided using the new --package-module-name-map flag (or package_module_name_map option in pyproject.toml).

Otherwise, looks good to me!

[mkniewallner]

Release published:

• https://github.com/fpgmaas/deptry/releases/tag/0.9.0
• https://pypi.org/project/deptry/0.9.0/

[mkniewallner]

Updated the changelog with the latest PRs that got merged, and added a Breaking changes section. Tell me what you think @fpgmaas. Once we are good with the changelog, I'll tag the new release.