chore(deps): update rstack toolchain

Author: renovate[bot]

package.json

@@ -16,7 +16,7 @@
   },
   "devDependencies": {
     "bumpp": "^11.1.0",
-    "rstack": "^0.7.4"
+    "rstack": "^0.7.6"
   },
   "packageManager": "pnpm@11.20.0",
   "engines": {

packages/vscode/package.json

@@ -430,8 +430,8 @@
     "onStartupFinished"
   ],
   "devDependencies": {
-    "@rsbuild/core": "~2.2.5",
-    "@rslib/core": "^1.0.0",
+    "@rsbuild/core": "~2.2.8",
+    "@rslib/core": "^1.0.1",
     "@rslint/core": "^0.9.2",
     "@rstackjs/load-config": "^1.0.0",
     "@rstest/core": "^0.12.0",