[native] upgrade rn-emoji-keyboard to v1.5.0

Summary:
Our friends from `rn-emoji-keyboard` just released a new update to their emoji keyboard library which includes a new and improved search. This diff updates our usage of `rn-emoji-keyboard` to this new version

Link to update announcement: https://twitter.com/k7grzywacz/status/1682106194536669184?s=20

Test Plan:
Check out the demo videos below to see the improved search in the native emoji keyboard:

Before:
{F648559}

After:
{F648560}

Reviewers: atul, kamil, ashoat

Reviewed By: atul, kamil, ashoat

Subscribers: ashoat, tomek

Differential Revision: https://phab.comm.dev/D8599

native/package.json

@@ -117,7 +117,7 @@
     "redux-persist": "^6.0.0",
     "redux-thunk": "^2.2.0",
     "reselect": "^4.0.0",
-    "rn-emoji-keyboard": "^1.2.0",
+    "rn-emoji-keyboard": "^1.5.0",
     "shallowequal": "^1.0.2",
     "simple-markdown": "^0.7.2",
     "tinycolor2": "^1.4.1",

yarn.lock

@@ -20920,10 +20920,10 @@ rimraf@~2.6.2:
   dependencies:
     glob "^7.1.3"
 
-rn-emoji-keyboard@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/rn-emoji-keyboard/-/rn-emoji-keyboard-1.2.0.tgz#a8fe18230624855b483cdbff139cb1f2ac8d8c6d"
-  integrity sha512-OyfMOxH6Op+SH6fq1bJBl1Wp6ukC/0VbRmnyo2GaQoYkv46g3Xjw3Io9N8j7Mhk60DSSORig+Jjpf+oa8bZOEA==
+rn-emoji-keyboard@^1.5.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/rn-emoji-keyboard/-/rn-emoji-keyboard-1.5.0.tgz#86307fa0fecab24dbf918811665cc460bcf7e70c"
+  integrity sha512-PnImBZxqpxzsNKHO8crGnpHdwdNh+b3CdT51Irsg3BnFd1ArQQzngqO8wP148JdD3GWZj+uvdn9aWn2KbALoAw==
 
 rn-host-detect@1.2.0, rn-host-detect@^1.0.1, rn-host-detect@^1.1.5:
   version "1.2.0"