Fix syntax

Author: Hind-M

.github/workflows/conan.yaml

@@ -25,7 +25,7 @@ jobs:
       - name: Install conan dependencies
         run: |
           conan profile detect --force
-          conan install . --output-folder=build --build=missing -s:a compiler.cppstd=20 -o:a build_tests=True -o "sparrow/*:export_json_reader=True"
+          conan install . --output-folder=build --build=missing -s:a compiler.cppstd=20 -o "&:build_tests=True" -o "sparrow/*:export_json_reader=True"
 
       - name: CMake configuration
         run: |