docs: fix broken yamllint config link in CONTRIBUTING.md

[Bakan0]

Description

Fixed broken link in CONTRIBUTING.md file. Updated reference from yamllint-config.yml to .yamllint.yml to resolve 404 error. │

Screenshot

Issues Fixed or Closed

Roadmap Issues

Type of Change

• feat: New feature (non-breaking change which adds functionality)
• fix: Bug fix (non-breaking change which fixes an issue)
• docs: Documentation only changes
• style: Changes that do not affect the meaning of the code (white-space, formatting, missing semicolons, etc.)
• refactor: Code change that neither fixes a bug nor adds a feature
• perf: Code change that improves performance
• test: Adding missing tests or correcting existing tests
• build: Changes that affect the build system or external dependencies
• ci: Changes to CI configuration files and scripts
• chore: Other changes that don't modify src or test files
• revert: Reverts a previous commit
• BREAKING CHANGE: Introduces a breaking change (can be combined with any type above)

Checklist

• Code follows the style guidelines of this project
• Code has been self-reviewed
• Code has been commented, particularly in hard-to-understand areas
• Code docstring/documentation-blocks for new or existing methods/components have been added or updated
• Unit tests have been added or updated for any new or modified functionality

AI Usage

• None: No AI tools were used in creating this PR
• Light: AI provided minor assistance (formatting, simple suggestions)
• Moderate: AI helped with code generation or debugging specific parts
• Heavy: AI generated most or all of the code changes

[CLAassistant]

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[Bakan0]

hopefully this PR is better ><

I attempted a much easier one while reading through the contribution guide you gave me and found the missing link. Thank you @ReenigneArcher for encouraging me and giving me a chance :D

[ReenigneArcher]

Please sign the CLA (link above) and use our PR template (not AI generated one) https://github.com/LizardByte/.github/blob/master/.github/pull_request_template.md?plain=1

In the future PRs with AI generated summaries will be automatically closed. Thanks.

[ReenigneArcher]

Thank you for pointing out the broken link. I have fixed it in #505 along with some other updates.