Setup Regal to lint policies and clean them up

.github/workflows/ci.yaml

@@ -33,7 +33,12 @@ jobs:
       - name: Setup OPA
         uses: open-policy-agent/setup-opa@v2.2.0
         with:
-          version: 0.64.1
+          version: 0.70.0
+
+      - name: Setup Regal
+        uses: StyraInc/setup-regal@v1
+        with:
+          version: 0.29.2
 
       - name: Lint policies
         working-directory: ./policies

.github/workflows/coverage.yaml

@@ -29,7 +29,7 @@ jobs:
       - name: Setup OPA
         uses: open-policy-agent/setup-opa@v2.2.0
         with:
-          version: 0.64.1
+          version: 0.70.0
 
       - name: Run OPA tests with coverage
         working-directory: ./policies