feat: Restrict use of masterKey to localhost by default (#8281)

BREAKING CHANGE: This release restricts the use of `masterKey` to localhost by default; if you are using Parse Dashboard on a different server to connect to Parse Server you need to add the IP address of the server that hosts Parse Dashboard to this option (#8281)

spec/index.spec.js

@@ -495,7 +495,9 @@ describe('server', () => {
 
   it('fails if you provides invalid ip in masterKeyIps', done => {
     reconfigureServer({ masterKeyIps: ['invalidIp', '1.2.3.4'] }).catch(error => {
-      expect(error).toEqual('Invalid ip in masterKeyIps: invalidIp');
+      expect(error).toEqual(
+        'The Parse Server option "masterKeyIps" contains an invalid IP address "invalidIp".'
+      );
       done();
     });
   });