Add support for sqlite3 to dbfixtures executor

[etandel]

It seems the underlying libraries used by dbfixtures support sqlite3, so I'm adding support for it as well.

I think the tests are passing locally, that's why I'm opening this PR, but TBH I'm not completely sure: make integration-test exits successfully with 0, but I don't see any venom output in my stdout.

Do let me know if anything else needs changing.

[ovh-cds]

CDS Report build-venom-a#1061.0 ✘

• Build
  • Build ✔
  • Unit Tests ✔
• Tests
  • Acceptance Tests ✘

[fsamin]

Hello,
thank you for your contribution, to run the tests please try the following:

unit tests:

• make test

integration tests:

• make build OS=linux ARCH=amd64
• cp dist/venom.linux-amd64 tests/venom
• cd tests
• make start-test-stack (wait a few seconds)
• make build-test-binary-docker
• make run-test

you can also give a try to gitpod https://www.gitpod.io/ https://github.com/ovh/venom/blob/master/.gitpod.yml

i run the tests in our CI and it is failing failed to ping database: invalid uri authority on test initialize-postgresql-database-with-migrations (see suggestion)

[etandel]

Hi @fsamin, thanks a lot for the review and the additional instructions on running the integration tests.

I just pushed some fixes and dbfixture tests are passing locally. There are a few unrelated integration tests that are failing (e.g. SSH), probably due to my local setup.

I also took the liberty of adding your testing instructions to the main README under the Hacking section.

[fsamin]

LGTM

[yesnault]

LGTM, thank you @etandel

[etandel]

Thanks everyone!