skipLibCheck for examples/cluster (#1260)

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### Proposed changes

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This change instructs TypeScript to avoid re-checking node_modules
(dependencies) in the examples/cluster.

### Related issues (optional)

This partially addresses
#1258

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#1234'.
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examples/cluster/tsconfig.json

@@ -16,7 +16,8 @@
         "noImplicitAny": true,
         "noImplicitReturns": true,
         "forceConsistentCasingInFileNames": true,
-        "strictNullChecks": true
+        "strictNullChecks": true,
+        "skipLibCheck": true
     },
     "files": [
         "index.ts"