CI: Update hrval validation job

Author: stefanprodan

.circleci/config.yml

@@ -2,17 +2,9 @@ version: 2.1
 jobs:
   validate-yamls:
     docker:
-      - image: circleci/golang:1.13
+      - image: stefanprodan/hrval:v2.6.0
     steps:
       - checkout
-      - run:
-          name: Install kubeval and hrval
-          command: |
-            curl -sL https://raw.githubusercontent.com/stefanprodan/hrval-action/v2.3.0/src/deps.sh | sudo bash
-            sudo curl -sL https://raw.githubusercontent.com/stefanprodan/hrval-action/v2.3.0/src/hrval.sh \
-              -o /usr/local/bin/hrval.sh && sudo chmod +x /usr/local/bin/hrval.sh
-            sudo curl -sL https://raw.githubusercontent.com/stefanprodan/hrval-action/v2.3.0/src/hrval-all.sh \
-              -o /usr/local/bin/hrval && sudo chmod +x /usr/local/bin/hrval
       - run:
           name: Validate workloads
           environment: