To improve `CI` quality the following checks were added:
* compile warnings
* deprecated dependencies
* insecure dependencies
* unused dependencies
* code vulnerabilities
Also, to improve `CI` execution time, dependencies checks and lining were separated from the test pipeline.
Last, but not least, to make local development easier a `Dockerfile` was created to contain any system dependencies, and targets to handle database creation and migration were added.
Reviewed-on: #37
1. Ignore unnecessary files, such as `pgcli` log/history, and extra `docker-compose` definitions.
2. Add `Makefile` with common tasks.
3. Add git pre-commit hook to ensure project is always properly formatted.
4. Add [`btree_gist`][0] extension to `postgres`.
Reviewed-on: #6
[0]: https://www.postgresql.org/docs/14/btree-gist.html
