Revert "update draft"

This reverts commit 0f10984.

Author: kratsg

src/pyhf/schemas/1.0.0/defs.json

@@ -1,5 +1,5 @@
 {
-    "$schema": "http://json-schema.org/draft/2020-12/schema#",
+    "$schema": "http://json-schema.org/draft-06/schema#",
     "$id": "https://scikit-hep.org/pyhf/schemas/1.0.0/defs.json",
     "definitions": {
         "workspace": {

src/pyhf/schemas/1.0.0/jsonpatch.json

@@ -1,5 +1,5 @@
 {
-    "$schema": "http://json-schema.org/draft/2020-12/schema#",
+    "$schema": "http://json-schema.org/draft-06/schema#",
     "$id": "https://scikit-hep.org/pyhf/schemas/1.0.0/jsonpatch.json",
     "$ref": "defs.json#/definitions/jsonpatch"
 }

src/pyhf/schemas/1.0.0/measurement.json

@@ -1,5 +1,5 @@
 {
-    "$schema": "http://json-schema.org/draft/2020-12/schema#",
+    "$schema": "http://json-schema.org/draft-06/schema#",
     "$id": "https://scikit-hep.org/pyhf/schemas/1.0.0/measurement.json",
     "$ref": "defs.json#/definitions/measurement"
 }

src/pyhf/schemas/1.0.0/model.json

@@ -1,5 +1,5 @@
 {
-    "$schema": "http://json-schema.org/draft/2020-12/schema#",
+    "$schema": "http://json-schema.org/draft-06/schema#",
     "$id": "https://scikit-hep.org/pyhf/schemas/1.0.0/model.json",
     "$ref": "defs.json#/definitions/model"
 }

src/pyhf/schemas/1.0.0/patchset.json

@@ -1,5 +1,5 @@
 {
-    "$schema": "http://json-schema.org/draft/2020-12/schema#",
+    "$schema": "http://json-schema.org/draft-06/schema#",
     "$id": "https://scikit-hep.org/pyhf/schemas/1.0.0/patchset.json",
     "$ref": "defs.json#/definitions/patchset"
 }

src/pyhf/schemas/1.0.0/workspace.json

@@ -1,5 +1,5 @@
 {
-    "$schema": "http://json-schema.org/draft/2020-12/schema#",
+    "$schema": "http://json-schema.org/draft-06/schema#",
     "$id": "https://scikit-hep.org/pyhf/schemas/1.0.0/workspace.json",
     "$ref": "defs.json#/definitions/workspace"
 }