refactor: remove `key` field and update table field (ConduitIO#135)

* refactor: use tables in plural

* update readme

* bump conduit-commons and connector-protocol

* update readme

* use old field name

* update readme

* remove keys from configuration

* fix lint

* add support to table

* rename connection pool var

* fix test

* fix readme

* remove comment

go.mod: bump github.com/golangci/golangci-lint from 1.57.1 to 1.57.2 (C…

…onduitIO#127)

Bumps [github.com/golangci/golangci-lint](https://github.com/golangci/golangci-lint) from 1.57.1 to 1.57.2.
- [Release notes](https://github.com/golangci/golangci-lint/releases)
- [Changelog](https://github.com/golangci/golangci-lint/blob/master/CHANGELOG.md)
- [Commits](golangci/golangci-lint@v1.57.1...v1.57.2)

---
updated-dependencies:
- dependency-name: github.com/golangci/golangci-lint
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bump SDK version to v0.7.0 (ConduitIO#100)

Release v0.4.0

go.mod: bump github.com/conduitio/conduit-connector-sdk to v0.3.0 (Co…

…nduitIO#65)

update sdk to v0.2.0 (ConduitIO#26)