ci(codeql): scan actions extractor, not absent javascript-typescript

[hyperpolymath]

Summary

Cliodynamics.jl is a Julia package with no JS/TS source, but .github/workflows/codeql.yml pinned language: javascript-typescript — so the analyze (javascript-typescript) job found no code and failed every run (the CodeQL Security Analysis red on main).

Fix

Switch the matrix to language: actions — CodeQL's actions extractor scans the GitHub Actions workflow files (present in every repo), which is the meaningful SAST target for a non-JS/TS repo. This matches the rest of the estate (Cliometrics, Axiology, nextgen-languages/typing, echo-types already use actions) and closes the Hypatia codeql_language_matrix_mismatch finding.

One-line change + an explanatory comment. Draft until CI confirms analyze (actions) goes green.

🤖 Generated with Claude Code

https://claude.ai/code/session_01PWMMxryCcPrAjJ8tuGvygG

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Generated by Claude Code

[github-actions]

🔍 Hypatia Security Scan

Findings: 18 issues detected

Severity	Count
🔴 Critical	0
🟠 High	13
🟡 Medium	5

View findings

[
  {
    "reason": "Action julia-actions/CompatHelper@v1 needs attention",
    "type": "unpinned_action",
    "file": "CompatHelper.yml",
    "action": "pin_sha",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Issue in scorecard-enforcer.yml",
    "type": "scorecard_publish_with_run_step",
    "file": "scorecard-enforcer.yml",
    "action": "split_scorecard_publish_job",
    "rule_module": "workflow_audit",
    "severity": "high"
  },
  {
    "reason": "Issue in instant-sync.yml",
    "type": "secret_action_without_presence_gate",
    "file": "instant-sync.yml",
    "action": "peter-evans/repository-dispatch",
    "rule_module": "workflow_audit",
    "severity": "high"
  },
  {
    "reason": "Nominal-only SAST in Cliodynamics.jl: codeql.yml language matrix contains no language present in the repo and lacks `actions`, so CodeQL records zero results on every commit. Remediation: set the CodeQL matrix to `language: actions`.",
    "type": "StaticAnalysis",
    "file": "/home/runner/work/Cliodynamics.jl/Cliodynamics.jl",
    "action": "auto_fix",
    "rule_module": "scorecard",
    "severity": "medium",
    "remediation": "Add CodeQL or equivalent SAST workflow.",
    "scorecard_check": "SAST"
  },
  {
    "reason": "1 workflow(s) with tag-pinned (not SHA-pinned) actions in Cliodynamics.jl",
    "type": "DependencyPinning",
    "file": "/home/runner/work/Cliodynamics.jl/Cliodynamics.jl",
    "action": "auto_fix",
    "rule_module": "scorecard",
    "severity": "medium",
    "remediation": "Pin GitHub Actions and Docker base images by SHA hash.",
    "scorecard_check": "Pinned-Dependencies"
  },
  {
    "reason": "Repository has 5 non-main remote branch(es). Policy: single main branch only.",
    "type": "GS007",
    "file": ".",
    "action": "delete_remote_branches",
    "rule_module": "git_state",
    "severity": "medium"
  },
  {
    "reason": "Code scanning (Scorecard): TokenPermissionsID -- Token-Permissions -- 0 day(s) old",
    "type": "CSA001",
    "file": ".github/workflows/Documenter.yml",
    "action": "update",
    "rule_module": "code_scanning_alerts",
    "severity": "high"
  },
  {
    "reason": "Code scanning (Scorecard): TokenPermissionsID -- Token-Permissions -- 3 day(s) old",
    "type": "CSA001",
    "file": ".github/workflows/hypatia-scan.yml",
    "action": "update",
    "rule_module": "code_scanning_alerts",
    "severity": "high"
  },
  {
    "reason": "Code scanning (Scorecard): TokenPermissionsID -- Token-Permissions -- 3 day(s) old",
    "type": "CSA001",
    "file": ".github/workflows/dependabot-automerge.yml",
    "action": "update",
    "rule_module": "code_scanning_alerts",
    "severity": "high"
  },
  {
    "reason": "Code scanning (Scorecard): TokenPermissionsID -- Token-Permissions -- 3 day(s) old",
    "type": "CSA001",
    "file": ".github/workflows/TagBot.yml",
    "action": "update",
    "rule_module": "code_scanning_alerts",
    "severity": "high"
  }
]

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