Fix CI for pnpm integrity check (#9459)

Co-authored-by: Daniel Cousens <[email protected]>

Author: emmatown

.github/actions/ci-setup-examples/action.yml

@@ -2,6 +2,8 @@ name: 'CI setup (w/ examples)'
 runs:
   using: 'composite'
   steps:
+    - run: npm i -g [email protected]
+      shell: bash
     - run: corepack enable
       shell: bash
 

.github/actions/ci-setup/action.yml

@@ -2,6 +2,8 @@ name: 'CI setup'
 runs:
   using: 'composite'
   steps:
+    - run: npm i -g [email protected]
+      shell: bash
     - run: corepack enable
       shell: bash