## Summary
`gitleaks/gitleaks-action@v2` is now paywalled for organisations — the action requires a `GITLEAKS_LICENSE` secret from gitleaks.io (commercial) or it errors out:
```
🛑 missing gitleaks license. Go grab one at gitleaks.io and store it as a GitHub Secret named GITLEAKS_LICENSE.
```
Worse, on Gitea it cannot reliably detect personal-vs-org accounts (different API contract), so it defaults to license enforcement and the scan always fails. The **gitleaks binary itself stays MIT-licensed and free** — only the wrapper went commercial.
Mirror the pattern from #45 (Trivy): drop the wrapper, install the binary directly via curl + tar, run the CLI.
## Scope of the PR
The same two broken integrations existed in `.gitea/workflows/security-scheduled.yml` and would have failed silently at next Monday's cron. Fix both files in one PR for consistency.
- **`ci.yml`** — gitleaks step replaced. Per-PR scan uses `--no-git --source .` (working tree only — the scan job uses a shallow checkout anyway).
- **`security-scheduled.yml`** — both gitleaks AND trivy steps replaced; `fetch-depth: 0` added so gitleaks can do its **deep history scan** here (the value-add of the scheduled job over the per-PR gate); `cache: 'pnpm'` dropped from `actions/setup-node` (consistency with #8 — the act_runner cache server is unreachable from job containers).
- `--redact` on both gitleaks invocations so any matched secret is masked in the CI log itself (avoids re-leaking via log artefacts).
## Trade-off
Like Trivy, gitleaks version is now manually pinned. Same comment in the workflow points to releases for bumps.
## Test plan
- [ ] `scan` job goes green end-to-end on this PR (audit ✓, Trivy ✓, gitleaks ✓).
- [ ] `gitleaks version` line in the install step's logs shows `8.21.0`.
- [ ] On `push` to main post-merge, scan stays green.
- [ ] Trigger `security-scheduled` manually (Actions → Run workflow) to verify the deep-history scan path before next Monday's cron fires.
---------
Co-authored-by: Julien Gautier <julien.gautier@apf.asso.fr>
Reviewed-on: #50
julien
0d27f835c3