ci/Doc: build 2023_05 slides

Author: umarcor

.github/workflows/Doc.yml

@@ -60,6 +60,7 @@ jobs:
           - 2020_03
           - 2021_05
           - 2022_05
+          - 2023_05
     steps:
 
     - name: 🧰 Checkout
@@ -102,3 +103,4 @@ jobs:
             artifacts/2020_03/*.pdf
             artifacts/2021_05/*.pdf
             artifacts/2022_05/*.pdf
+            artifacts/2023_05/*.pdf