Fix integration test and update config files

[Bilbottom]

Summary by Sourcery

Fix the integration test by setting the correct environment variables and adding a cleanup step. Update the CI workflow to use the latest versions of Poetry and Python setup actions. Revise README badges to reflect current project status and add a pre-commit hook for generating a coverage badge.

Bug Fixes:

• Fix the integration test by ensuring the correct environment variables are set and adding a teardown fixture to clean up the compiled directory.

CI:

• Simplify the GitHub Actions workflow by removing specific path triggers and updating the setup for Poetry and Python to newer versions.

Documentation:

• Update README badges to reflect the current status of tests and coverage, and remove outdated application tests badge.

Tests:

• Enhance the integration test to verify that dbt can be successfully invoked, including a new teardown fixture for cleanup.

Chores:

• Add a pre-commit hook to generate a coverage badge automatically.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request focuses on improving the integration test, updating configuration files, and enhancing the project's documentation. The changes include refactoring the integration test, updating GitHub Actions workflow, modifying the README, and adding a new pre-commit hook for generating a coverage badge.

Sequence diagram for the integration test refactor

sequenceDiagram
    actor Tester
    participant TestEnv as Test Environment
    participant DBT as dbt_py

    Tester->>TestEnv: Set environment variables
    TestEnv-->>DBT: Provide environment variables
    Tester->>DBT: Invoke dbt_py with arguments
    DBT-->>Tester: Execute and return results
    Note over Tester,DBT: Test checks if dbt can be successfully invoked

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Architecture diagram for updated GitHub Actions workflow

graph TD;
    A[GitHub Actions] -->|workflow_dispatch| B[Tests]
    A -->|pull_request| B
    B --> C[version-testing]
    C --> D[Check out repository]
    C --> E[Set up Poetry]
    C --> F[Set up Python]

    subgraph Matrix
        G[windows-latest]
        H[macos-latest]
        I[ubuntu-latest]
    end
    C -->|runs-on| Matrix

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File-Level Changes

Change	Details	Files
Refactored and improved the integration test	Added a new teardown fixture to remove the compiled directory after tests Renamed the test function to be more descriptive Updated environment variable setting to improve readability	tests/integration/test__integration.py
Updated GitHub Actions workflow configuration	Renamed the workflow from 'Application Tests' to 'Tests' Removed specific path triggers for the workflow Updated the versions of actions/checkout, actions/setup-python, and Poetry Simplified the matrix strategy for OS testing	.github/workflows/tests.yaml
Enhanced README with additional badges and information	Added badges for tests, coverage, and Sourcery Updated existing badges for better consistency and information Removed outdated badge for application tests	README.md
Added a new pre-commit hook for generating a coverage badge	Configured a new hook to generate and update a coverage badge SVG file	.pre-commit-config.yaml
Refactored environment variable handling in the main script	Moved the PACKAGE_ROOT environment variable retrieval into the function where it's used Removed a global variable to improve code organization	dbt_py/main.py

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