Sweep: Support ARDUINO_CONFIG environment variable (✓ Sandbox Passed)

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PR Feedback: 👎

Description

This pull request adds support for the ARDUINO_CONFIG environment variable in Arduino CLI. It allows users to set the configuration file that Arduino CLI uses. The ARDUINO_CONFIG environment variable is checked before the --config-file command line flag and the automatic checking of the current and parent directories.

Summary

• Added support for the ARDUINO_CONFIG environment variable in Arduino CLI.
• The ARDUINO_CONFIG environment variable sets the configuration file that Arduino CLI uses.
• The specified configuration file is used for all subsequent Arduino CLI commands after setting the ARDUINO_CONFIG environment variable.
• Updated the documentation in docs/configuration.md to include information about the ARDUINO_CONFIG environment variable.
• Added a new test case in internal/integrationtest/config/config_test.go to test the ARDUINO_CONFIG environment variable.

Fixes #1.

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Sandbox Executions

• [X] Running GitHub Actions for internal/integrationtest/config/config_test.go ✓

  Check internal/integrationtest/config/config_test.go with contents:

Ran GitHub Actions for 06a68475f6627854464088b5921732e24c92b309:

• [X] Running GitHub Actions for docs/configuration.md ✓

  Check docs/configuration.md with contents:

Ran GitHub Actions for 81c1d5e8bccc83b6d14a15cb8ec86068c474025c:

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Rollback Files For Sweep

• [ ] Rollback changes to True

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Apply Sweep Rules to your PR?

• [ ] Apply: All new business logic should have corresponding unit tests.
• [ ] Apply: Refactor large functions to be more modular.
• [ ] Apply: Add docstrings to all functions and file headers.