Update alpine binary link

Author: AdityaHirapara

lib/LocalBinary.js

@@ -19,7 +19,7 @@ function LocalBinary(){
       return 'https://s3.amazonaws.com/bstack-local-prod/BrowserStackLocal.exe';
     } else {
       if(this.isAlpine()) {
-        return 'https://s3.amazonaws.com/bstack-local-prod/BrowserStackLocal-alpine';
+        return 'https://bstack-local-prod.s3.amazonaws.com/BrowserStackLocal-alpine';
       } else {
         if(this.is64bits)
           return 'https://s3.amazonaws.com/bstack-local-prod/BrowserStackLocal-linux-x64';

test/local.js

@@ -354,7 +354,7 @@ describe('LocalBinary', function () {
     it('should return download path of alpine linux binary', function() {
       sandBox.stub(localBinary, 'hostOS', 'linux');
       localBinary.isAlpine = sandBox.stub(localBinary, 'isAlpine').returns(true);
-      expect(localBinary.getDownloadPath()).to.equal('https://s3.amazonaws.com/bstack-local-prod/BrowserStackLocal-alpine');
+      expect(localBinary.getDownloadPath()).to.equal('https://bstack-local-prod.s3.amazonaws.com/BrowserStackLocal-alpine');
     });
 
     afterEach(function(done) {