ci(build): re-enable docs (#43)

Author: ReenigneArcher

.github/workflows/ci.yml

@@ -62,6 +62,7 @@ jobs:
       - name: Setup Dependencies macOS
         if: runner.os == 'macOS'
         run: |
+          brew update
           brew install \
             cmake \
             doxygen \
@@ -112,8 +113,7 @@ jobs:
             # Doxygen from Ubuntu is too old, need Doxygen >= 1.10
             DOCS=OFF
           else
-            # Doxygen 1.13 is incompatible with doxygen-awesome-css
-            DOCS=OFF
+            DOCS=ON
           fi
 
           cmake \