Update languageServerReleasesPath to default blank

(cherry picked from commit 2d83281)

Author: soiamsoNG

package.json

@@ -149,7 +149,7 @@
         "haskell.languageServerReleasesPath": {
           "scope": "resource",
           "type": "string",
-          "default": "https://api.github.com/repos/haskell/haskell-language-server/releases",
+          "default": "",
           "description": "An optional path to override where to check for haskell-language-server releases"
         },
         "haskell.serverExecutablePath": {

src/hlsBinaries.ts

@@ -161,11 +161,18 @@ async function getProjectGhcVersion(context: ExtensionContext, dir: string, rele
 }
 
 async function getLatestReleaseMetadata(context: ExtensionContext): Promise<IRelease | null> {
-  const releasesUrl = url.parse(workspace.getConfiguration('haskell').languageServerReleasesPath);
-  const opts: https.RequestOptions = {
-    host: releasesUrl.host,
-    path: releasesUrl.path,
-  };
+  const releasesUrl = workspace.getConfiguration('haskell').languageServerReleasesPath
+    ? url.parse(workspace.getConfiguration('haskell').languageServerReleasesPath)
+    : undefined;
+  const opts: https.RequestOptions = releasesUrl
+    ? {
+        host: releasesUrl.host,
+        path: releasesUrl.path,
+      }
+    : {
+        host: 'api.github.com',
+        path: '/repos/haskell/haskell-language-server/releases',
+      };
 
   const offlineCache = path.join(context.globalStoragePath, 'latestApprovedRelease.cache.json');