fix: bedrock-markdown-links pnpm not found error

.circleci/config.yml

@@ -685,6 +685,10 @@ jobs:
       image: ubuntu-2204:2022.07.1
     steps:
       - checkout
+      - run:
+          name: Install pnpm package manager
+          command: |
+            npm i pnpm --global
       - run:
           name: Lint check
           command: |