chore: bump version to 6.7.6

Author: shuowu

package.json

@@ -2,7 +2,7 @@
   "private": true,
   "name": "@okta/okta-auth-js",
   "description": "The Okta Auth SDK",
-  "version": "6.7.5",
+  "version": "6.7.6",
   "homepage": "https://github.com/okta/okta-auth-js",
   "license": "Apache-2.0",
   "main": "build/cjs/index.js",