feat: core7 (#631)

Author: mshanemc

package.json

@@ -44,7 +44,7 @@
     "!lib/**/*.map"
   ],
   "dependencies": {
-    "@salesforce/core": "^6.7.6",
+    "@salesforce/core": "^7.0.0",
     "@salesforce/kit": "^3.1.0",
     "@salesforce/ts-types": "^2.0.9",
     "@types/shelljs": "^0.8.15",