infra: upgrade circleci version to 2.1

[CallMeLeopoldo]

No description provided.

[gemini-code-assist]

Code Review

This pull request updates the CircleCI configuration file (.circleci/config.yml) to use version 2.1 instead of version 2. There are no review comments, and I have no feedback to provide.

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[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

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AI Reviewer: first review requested successfully. AI can make mistakes. Always validate suggestions.

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[codacy-production]

Pull Request Overview

The proposed infrastructure changes are up to standards according to the static analysis. No critical security flaws or major logic bugs were identified that would prevent merging. The primary recommendations involve providing context for the change and ensuring the configuration file syntax is validated.

About this PR

• The PR description is empty. It is recommended to provide a brief explanation for the upgrade to maintain clear repository documentation and help reviewers understand the context.

Test suggestions

• Validate CircleCI configuration syntax using the circleci-cli

Prompt proposal for missing tests

Consider implementing these tests if applicable:
1. Validate CircleCI configuration syntax using the circleci-cli

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