bump headless-react (#47)

bump chat-headless version to v0.8.0 to get changes from #46

J=CLIP-1189
TEST=manual&auto

see that unit tests passed
build chat-headless-react and link the library locally to chat-ui-react. Force an internal error using yen-bot-2 (v18)'s CHIT_CHAT goal. See that the thrown error is instance of ApiError and contains the expected new fields.

packages/chat-headless-react/THIRD-PARTY-NOTICES

@@ -139,8 +139,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 The following npm packages may be included in this product:
 
- - @yext/chat-core@0.7.6
- - @yext/chat-headless@0.7.5
+ - @yext/chat-core@0.8.0
+ - @yext/chat-headless@0.8.0
 
 These packages each contain the following license and notice below:
 

packages/chat-headless-react/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@yext/chat-headless-react",
-  "version": "0.6.1",
+  "version": "0.7.0",
   "description": "the official React UI Bindings layer for Chat Headless",
   "main": "./dist/commonjs/src/index.js",
   "module": "./dist/esm/src/index.mjs",
@@ -39,7 +39,7 @@
   "homepage": "https://github.com/yext/chat-headless#readme",
   "dependencies": {
     "@reduxjs/toolkit": "^1.9.5",
-    "@yext/chat-headless": "^0.7.1",
+    "@yext/chat-headless": "^0.8.0",
     "react-redux": "^8.0.5"
   },
   "peerDependencies": {