fix(ci): fix the changelog generation

Pinned `@octokit/rest` to `19.0.13`, so that it works with Node.js 16+.

Closes #2200

Signed-off-by: Akos Kitta <a.kitta@arduino.cc>

Author: Akos Kitta

Diff for: .github/workflows/compose-full-changelog.yml

@@ -32,7 +32,7 @@ jobs:
       - name: Create full changelog
         id: full-changelog
         run: |
-          yarn add @octokit/rest --ignore-workspace-root-check
+          yarn add @octokit/rest@19.0.13 --ignore-workspace-root-check
           mkdir "${{ github.workspace }}/${{ env.CHANGELOG_ARTIFACTS }}"
 
           # Get the changelog file name to build