CompatHelper: bump compat for JSON to 1, (keep existing compat)

Author: CompatHelper Julia

Project.toml

@@ -14,6 +14,6 @@ Zarr = "0a941bbe-ad1d-11e8-39d9-ab76183a1d99"
 CommonDataModel = "0.3.5"
 DataStructures = "0.17, 0.18, 0.19"
 DiskArrays = "0.3.22, 0.4"
-JSON = "0.21"
+JSON = "0.21, 1"
 Zarr = "0.9.2"
 julia = "1.6"