Update ci-internal.yml

Author: sierpinskid

.github/workflows/ci-internal.yml

@@ -98,6 +98,7 @@ jobs:
       - name: Install unar (for extracting .pkg files on Linux)
         if: ${{ inputs.os }} == 'ubuntu-latest'
         run: sudo apt-get install -y unar
+        continue-on-error: true
 
       - name: Download Unity & Modules
         shell: bash