Update d.yml

.github/workflows/d.yml

@@ -22,6 +22,12 @@ jobs:
     - uses: actions/checkout@v3
     - uses: dlang-community/setup-dlang@4c99aa991ce7d19dd3064de0a4f2f6b2f152e2d7
 
+
+    - name: Install Doveralls (code coverage tool)
+      run: |
+          dub fetch doveralls
+          sudo apt install libcurl4-openssl-dev
+
     - name: 'Build & Test'
       run: |
         # Build the project, with its main file included, without unittests