chore(deps): update dependency vscode-languageclient to v5.1.1 (#389)

Author: renovate[bot]

package.json

@@ -69,7 +69,7 @@
     "execa": "1.0.0",
     "mz": "2.7.0",
     "semver": "5.6.0",
-    "vscode-languageclient": "5.0.1"
+    "vscode-languageclient": "5.1.1"
   },
   "commitlint": {
     "extends": [