fix: add [compat] bounds for JSON and MacroTools

Author: ReubenJ

Project.toml

@@ -34,6 +34,8 @@ HerbConstraints = "0.4"
 HerbCore = "0.3.4"
 HerbGrammar = "0.6"
 HerbSearch = "0.4.1"
+JSON = "0.21.4"
+MacroTools = "0.5.16"
 MLStyle = "0.4.17"
 MetaGraphsNext = "0.7"
 Random = "1.10"