fixup! ci(build): dynamically create the build matrix

Author: StaticRocket

bin/build_matrix.py

@@ -25,7 +25,7 @@ def output_matrix(matrix):
     matrix_string = json.dumps(matrix)
     logging.info("Writing matrix data to: %s", GITHUB_PATH)
     with GITHUB_PATH.open("a", encoding="utf-8") as file:
-        file.write(f"matrix='{matrix_string}'\n")
+        file.write(f"matrix={matrix_string}\n")
 
 
 def unpack_os_set(platform, os_set):