Make java.configuration.runtimes machine-overridable (#2337)

Make java.configuration.runtimes machine-overridable

- Add java.configuration.runtimes to restricted configurations

Signed-off-by: Parth Thakkar <thakkar.parth.d@gmail.com>

Author: thakkarparth007

package.json

@@ -16,7 +16,8 @@
       "restrictedConfigurations": [
         "java.jdt.ls.java.home",
         "java.home",
-        "java.jdt.ls.vmargs"
+        "java.jdt.ls.vmargs",
+        "java.configuration.runtimes"
       ]
     },
     "virtualWorkspaces": false
@@ -721,7 +722,7 @@
             "additionalProperties": false
           },
           "default": [],
-          "scope": "machine"
+          "scope": "machine-overridable"
         },
         "java.server.launchMode": {
           "type": "string",