[price-service] Bump version to v2.2.0 (#409)

third_party/pyth/price-service/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@pythnetwork/pyth-price-service",
-  "version": "2.1.0",
+  "version": "2.2.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@pythnetwork/pyth-price-service",
-      "version": "2.1.0",
+      "version": "2.2.0",
       "license": "Apache-2.0",
       "dependencies": {
         "@certusone/wormhole-sdk": "^0.1.4",

third_party/pyth/price-service/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@pythnetwork/pyth-price-service",
-  "version": "2.1.0",
+  "version": "2.2.0",
   "description": "Pyth Price Service",
   "main": "index.js",
   "scripts": {