chore(deps): update dependency tslib to v2.6.3

Author: renovate[bot]

Diff for: lit-element-ts-esbuild/package-lock.json

@@ -25,7 +25,7 @@
     "@web/dev-server": "0.4.5",
     "@web/dev-server-esbuild": "0.4.4",
     "@web/test-runner": "0.16.0",
-    "tslib": "2.5.0",
+    "tslib": "2.6.3",
     "typescript": "5.0.4"
   }
 }

Diff for: lit-element-ts-esbuild/package.json

@@ -24,7 +24,7 @@
     "@types/node": "14.18.63",
     "@web/test-runner": "0.16.0",
     "@web/dev-server": "0.4.5",
-    "tslib": "2.5.0",
+    "tslib": "2.6.3",
     "typescript": "5.0.4"
   }
 }