fix(codeql): switch language matrix to 'actions' (no JS/TS in repo)

[hyperpolymath]

Same root cause as IJ.jl#6: CodeQL was pinned to language: javascript-typescript on a repo with no JS/TS source files, so the analyze job failed with a configuration error every run — blocking all Dependabot PRs.

Switches to actions, which scans the workflow files every repo has.

Description

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Refactoring (no functional changes)
• Performance improvement

Related Issues

Checklist

• My code follows the project's language policy (ReScript, Deno, no TypeScript/npm)
• I have added SPDX headers to new files
• I have updated the documentation accordingly
• I have added tests that prove my fix is effective or my feature works
• New and existing unit tests pass locally
• I have run deno fmt and deno lint on my changes

Ecological & Economic Considerations

• This change improves code efficiency
• This change has been reviewed for energy patterns
• This change maintains or improves the project's sustainability

Screenshots (if applicable)

Additional Notes