Fix vsix name typo in package.json

package.json

@@ -678,7 +678,7 @@
         "vscode:prepublish": "yarn compile",
         "compile": "yarn install && tsc -p ./",
         "watch": "tsc -watch -p ./",
-        "package": "vsce package --yarn -o cmake-tools.vsix",
+        "package": "vsce package --yarn -o makefile-tools.vsix",
         "pretest": "yarn compile",
         "test": "yarn run pretest && node ./out/src/test/runTest.js"
     },