Add REUSE configuration for lib/sanitize/ (#16251)

Author: straight-shoota

REUSE.toml

@@ -21,3 +21,8 @@ SPDX-License-Identifier = "MIT"
 path = "lib/reply/**"
 SPDX-FileCopyrightText = "Copyright (c) 2022 I3oris <[email protected]>"
 SPDX-License-Identifier = "MIT"
+
+[[annotations]]
+path = "lib/sanitize/**"
+SPDX-FileCopyrightText = "Copyright (c) 2020 Johannes Müller <[email protected]>"
+SPDX-License-Identifier = "Apache-2.0"