Create /benchmarks directory and restore dependabot configuration

[Copilot]

Description

Created /benchmarks directory in the repository root and restored the dependabot configuration to include it. This ensures Dependabot can successfully scan the benchmarks directory for NuGet dependencies without failures.

Type of change

• Bug fix
• New feature
• Breaking change
• Documentation update
• Refactor

How Has This Been Tested?

• Validated YAML syntax
• Verified benchmarks directory now exists in repository
• Confirmed all configurations reference valid directories (/, /src, /tests, /benchmarks, /examples)
• Added .gitkeep file to ensure directory is tracked by git

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

Screenshots (if applicable)

N/A - Directory structure and configuration file change only

Additional context

This addresses feedback from PR #27 where the bot flagged the non-existent /benchmarks directory reference. Instead of removing the configuration, the directory was created to support future benchmark projects. The directory contains a .gitkeep file to ensure it's tracked by version control and is ready for benchmark implementations.

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[Chris-Wolfgang]

@copilot create the required folder

[Copilot]

@copilot create the required folder

Created the /benchmarks directory and restored the dependabot configuration to include it. The directory is now ready for benchmark projects. (0a405df)