Install Doxygen from GitHub releases

Author: AA-Turner

.github/workflows/documentation.yml

@@ -31,12 +31,12 @@ jobs:
         sudo apt-get update
         sudo apt-get install graphviz
 
-    - name: Install doxygen from SourceForge binary archives
+    - name: Install Doxygen from GitHub releases
       env:
         DOXYGEN_VERSION: 1.9.4
       run: |
         mkdir doxygen-bin-arc && cd doxygen-bin-arc
-        curl -L https://sourceforge.net/projects/doxygen/files/rel-$DOXYGEN_VERSION/doxygen-$DOXYGEN_VERSION.linux.bin.tar.gz > doxygen.tar.gz
+        curl -LsSf https://github.com/doxygen/doxygen/releases/download/Release_${DOXYGEN_VERSION//./_}/doxygen-$DOXYGEN_VERSION.linux.bin.tar.gz > doxygen.tar.gz
         gunzip doxygen.tar.gz
         tar xf doxygen.tar
         cd doxygen-$DOXYGEN_VERSION