CI: enable ASAN on ubuntu

Author: Hugobros3

.github/workflows/cmake-multi-platform.yml

@@ -79,6 +79,11 @@ jobs:
       run: |
         sudo apt install libjson-c-dev
 
+    - name: Enable ASAN (linux)
+      if: startsWith(matrix.os,'ubuntu')
+      run: |
+        echo "CMAKE_PLATFORM_SPECIFIC_ARGS=-DCMAKE_C_FLAGS=-fsanitize=address" >> "$env:GITHUB_ENV"
+
     - name: Install json-c (vcpkg)
       if: startsWith(matrix.os,'windows')
       run: |