Add support for ruff, pre-commit, commitlint, pyproject.toml and dependabot

[mhieta]

Updates:

• Use ruff instead of Black, Flake8 and isort
• Use commitlint
• Use pyproject.toml instead of setup.cfg
• Update requirements
• Add pre-commit to project
• Update project readme
• Use common CI setup
• Add dependabot CI-config
• Update release-please configuration

Refs: RATYK-92, RATYK-93

[terovirtanen]

PAIKKATIETOHAKU-API branch is deployed to platta: https://paikkatietohaku-api-pr73.api.dev.hel.ninja 🚀🚀🚀

[danipran]

There's some discrepancy with Postgres/Python versions within the project. Make sure they're consistent across the board.

Also noticed that 8e5418b (ci: migrate to pyproject.toml) contains commitlint changes as well. Split this to its own commit.

[terovirtanen]

PAIKKATIETOHAKU-API branch is deployed to platta: https://paikkatietohaku-api-pr73.api.dev.hel.ninja 🚀🚀🚀

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
1 Accepted issue

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[terovirtanen]

PAIKKATIETOHAKU-API branch is deployed to platta: https://paikkatietohaku-api-pr73.api.dev.hel.ninja 🚀🚀🚀

[mhieta]

There's some discrepancy with Postgres/Python versions within the project. Make sure they're consistent across the board.

Updated to use PostgreSQL 14 and Python 3.12 across the project.

Also noticed that 8e5418b (ci: migrate to pyproject.toml) contains commitlint changes as well. Split this to its own commit.

Splitted commitlint into own commit.

[danipran]

LGTM! 👍