Generalize actions for reuse across adapters

[mikealfare]

Problem

We would like to reuse the same actions across all adapters for the release process.

Solution

• Pull repo-specific items out of the action and put into the workflow
• Parameterize the actions with sensible defaults
• Add ability to publish to PyPI test
• Add ability to publish dbt-tests-adapter or dbt-adapters`

Checklist

• I have read the contributing guide and understand what's expected of me
• I have run this code in development and it appears to resolve the stated issue
• This PR includes tests, or tests are not required/relevant for this PR
• This PR has no interface changes (e.g. macros, cli, logs, json artifacts, config files, adapter interface, etc) or this PR has already received feedback and approval from Product or DX

[mikealfare]

This workflow successfully published dbt-adapters and dbt-tests-adapter to tests.pypi.org:

https://test.pypi.org/project/dbt-adapters/0.1.0a6/
https://test.pypi.org/project/dbt-tests-adapter/1.8.0a2/

[mikealfare]

The actions are being reused successfully by dbt-postgres:

dbt-labs/dbt-postgres#1

The integration tests are failing there because of setting up postgres. This is a separate issue.