Update partition logic with source relation

[fivetran-avinash]

PR Overview

This PR will address the following Issue/Feature: dbt_shopify_source issue #77

This PR will result in the following new package version: dbt_shopify v0.10.1

Please detail what change(s) this PR introduces and any additional information that should be known during the review of this PR:

🐛 Bug Fixes 🪛

• Added source_relation to the partition_by clauses that determine the customer_index in the int_shopify__customer_email_rollup table.

🚘 Under The Hood 🚘

• Included auto-releaser GitHub Actions workflow to automate future releases.
• Added additional casting in seed dependencies for above models integration_tests/dbt_project.yml to ensure local testing passed on null cases.

PR Checklist

Basic Validation

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Standard Updates

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• Package versioning has been appropriately indexed in the following locations:
  • [x] indexed within dbt_project.yml
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• [NA] Appropriate yml documentation has been added (if applicable)

dbt Docs

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