ci/Release: replace openFPGALoader-Documentation subdir with a tarball

.github/workflows/Test.yml

@@ -243,9 +243,15 @@ jobs:
       with:
         path: artifact
 
+    - name: '✉️ Package Documentation'
+      run: |
+        cd artifact
+        tar cvzf openFPGALoader-Documentation.tar.gz openFPGALoader-Documentation
+        rm -rf openFPGALoader-Documentation
+
     # Tagged: create a pre-release or a release (semver)
     # Untagged: update the assets of pre-release 'nightly'
-    - uses: eine/tip@master
+    - uses: '📦 eine/tip@master'
       with:
         token: ${{ github.token }}
         tag: 'nightly'