chore: cache hermit in lint workflow

Author: lox

.github/workflows/lint.yml

@@ -22,6 +22,11 @@ jobs:
 
       - uses: actions/checkout@v5
 
+      - name: Activate Hermit
+        uses: cashapp/activate-hermit@v1
+        with:
+          cache: "true"
+
       - name: Run golangci-lint
         run: ./bin/golangci-lint run ./...