[lldb-dap] Update repository in package.json

Use https://github.com/llvm/vscode-lldb instead of the monorepo, for
consistency with the other two extensions (mlir, clangd).

lldb/tools/lldb-dap/package.json

@@ -8,7 +8,7 @@
   "license": "Apache 2.0 License with LLVM exceptions",
   "repository": {
     "type": "git",
-    "url": "https://github.com/llvm/llvm-project.git"
+    "url": "https://github.com/llvm/vscode-lldb.git"
   },
   "bugs": {
     "url": "https://github.com/llvm/llvm-project/issues"