Updated incorrect draft references

Author: mwadams

tests/draft-next/optional/refOfUnknownKeyword.json

@@ -2,7 +2,7 @@
     {
         "description": "reference of a root arbitrary keyword ",
         "schema": {
-            "$schema": "https://json-schema.org/draft/2020-12/schema",
+            "$schema": "https://json-schema.org/draft/next/schema",
             "unknown-keyword": {"type": "integer"},
             "properties": {
                 "bar": {"$ref": "#/unknown-keyword"}
@@ -24,7 +24,7 @@
     {
         "description": "reference of a root arbitrary keyword with encoded ref",
         "schema": {
-            "$schema": "https://json-schema.org/draft/2020-12/schema",
+            "$schema": "https://json-schema.org/draft/next/schema",
             "unknown/keyword": {"type": "integer"},
             "properties": {
                 "bar": {"$ref": "#/unknown~1keyword"}
@@ -46,7 +46,7 @@
     {
         "description": "reference of an arbitrary keyword of a sub-schema",
         "schema": {
-            "$schema": "https://json-schema.org/draft/2020-12/schema",
+            "$schema": "https://json-schema.org/draft/next/schema",
             "properties": {
                 "foo": {"unknown-keyword": {"type": "integer"}},
                 "bar": {"$ref": "#/properties/foo/unknown-keyword"}

tests/draft2019-09/optional/refOfUnknownKeyword.json

@@ -2,7 +2,7 @@
     {
         "description": "reference of a root arbitrary keyword ",
         "schema": {
-            "$schema": "https://json-schema.org/draft/2020-12/schema",
+            "$schema": "https://json-schema.org/draft/2019-09/schema",
             "unknown-keyword": {"type": "integer"},
             "properties": {
                 "bar": {"$ref": "#/unknown-keyword"}
@@ -24,7 +24,7 @@
     {
         "description": "reference of a root arbitrary keyword with encoded ref",
         "schema": {
-            "$schema": "https://json-schema.org/draft/2020-12/schema",
+            "$schema": "https://json-schema.org/draft/2019-09/schema",
             "unknown/keyword": {"type": "integer"},
             "properties": {
                 "bar": {"$ref": "#/unknown~1keyword"}
@@ -46,7 +46,7 @@
     {
         "description": "reference of an arbitrary keyword of a sub-schema",
         "schema": {
-            "$schema": "https://json-schema.org/draft/2020-12/schema",
+            "$schema": "https://json-schema.org/draft/2019-09/schema",
             "properties": {
                 "foo": {"unknown-keyword": {"type": "integer"}},
                 "bar": {"$ref": "#/properties/foo/unknown-keyword"}