fix: Revert changelog commits from previous failed publish (#710)

* Revert "Publish"

This reverts commit f919e8ef02.

* Revert "Updated CHANGELOGS & MD docs"

This reverts commit dbcc7dd6f4.

* Bump contracts-erc20 and contracts-utils versions

packages/protocol-utils/CHANGELOG.json

@@ -5,8 +5,7 @@
 			{
 				"note": "Add Barter support"
 			}
-		],
-		"timestamp": 1681700943
+		]
 	},
 	{
 		"version": "11.19.0",

packages/protocol-utils/CHANGELOG.md

@@ -6,9 +6,6 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
-## v11.20.0 - _April 17, 2023_
-
-    * Add Barter support
 ## v11.19.0 - _April 17, 2023_
 
     * Add Barter support

packages/protocol-utils/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/protocol-utils",
-    "version": "11.20.0",
+    "version": "11.18.2",
     "engines": {
         "node": ">=6.12"
     },
@@ -62,8 +62,8 @@
     },
     "dependencies": {
         "@0x/assert": "^3.0.36",
-        "@0x/contract-addresses": "^8.4.0",
-        "@0x/contract-wrappers": "^13.22.20",
+        "@0x/contract-addresses": "^8.2.0",
+        "@0x/contract-wrappers": "^13.22.19",
         "@0x/json-schemas": "^6.4.4",
         "@0x/subproviders": "^8.0.1",
         "@0x/utils": "^7.0.0",