chore(reusable): pin the reviewer image to sha-b37cd09 [skip ci]

Adopt the provider-wide lens budget build (PR #27) for gadfly's own reviews
and for consumers pinning this reusable. No image rebuild needed — the tag
already exists — so skip CI.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>

.gitea/workflows/review-reusable.yml

@@ -100,10 +100,11 @@ jobs:
     timeout-minutes: ${{ inputs.timeout_minutes }}
     steps:
       # Pin the reviewer image to an immutable sha (act_runner caches :latest, so a
-      # moved :latest is often NOT re-pulled). sha-bb98fae bundles the opencode CLI
-      # (PR #26, the `opencode/<model>` engine) and includes the Gitea >= 1.27
+      # moved :latest is often NOT re-pulled). sha-b37cd09 adds the provider-wide
+      # lens budget (PR #27: one shared lens-permit pool per provider, the model cap
+      # removed) on top of the opencode CLI engine (PR #26) and the Gitea >= 1.27
       # workflow_call reclassification. Bump per Gadfly release.
-      - uses: docker://gitea.stevedudenhoeffer.com/steve/gadfly:sha-bb98fae
+      - uses: docker://gitea.stevedudenhoeffer.com/steve/gadfly:sha-b37cd09
         env:
           # --- event context (from the CALLER's github.*) -------------------
           GITEA_API: ${{ github.server_url }}/api/v1/repos/${{ github.repository }}