Config Spec Update and add CodeQL Pack default

[GeekMasher]

This pull request introduces several updates to the Config struct and its implementation in src/config.rs, as well as modifications to the defaults.yml file. The key changes include adding new fields for ecosystem and global excludes, and ensuring these fields are properly handled during configuration loading and processing.

Changes to Config struct and implementation:

• src/config.rs: Added ecosystem and excludes fields to the Config struct and updated the Default implementation to initialize these fields. [1] [2]
• src/config.rs: Updated the Config implementation to handle the new ecosystem field by pushing its value to the ecosystems vector if present.
• src/config.rs: Added logic to handle the new excludes field by extending the excludes list for each location in the locations vector if excludes is not empty.

Updates to default configuration:

• defaults.yml: Added a new entry for "CodeQL Packs" with associated paths, excludes, ecosystems, and patterns.

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

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