install oktokit in changelog workflow

Author: Alberto Iannaccone

.github/workflows/compose-full-changelog.yaml

@@ -32,6 +32,7 @@ jobs:
       - name: Create full changelog
         id: full-changelog
         run: |
+          yarn add @octokit/rest
           mkdir "${{ github.workspace }}/${{ env.CHANGELOG_ARTIFACTS }}"
 
           # Get the changelog file name to build