build(deps): Bump typescript to v5.6 (#2880)

Also fixed `eslint` issues which are now found by TypeScript.

Author: teogeb

package-lock.json

@@ -51,7 +51,7 @@
         "lerna": "^8.1.9",
         "semver": "^7.6.3",
         "ts-jest": "^29.2.5",
-        "typescript": "^5.3.3",
+        "typescript": "^5.6.3",
         "typescript-eslint": "^8.16.0",
         "yarn": "^1.22.22",
         "zx": "^8.2.4"

package.json

@@ -652,7 +652,7 @@ export class ConnectionManager extends EventEmitter<TransportEvents> implements
     public getDiagnosticInfo(): Record<string, unknown> {
         const managedConnections: ManagedConnection[] = Array.from(this.endpoints.values())
             .filter((endpoint) => endpoint.connected)
-            .map((endpoint) => endpoint.connection as ManagedConnection)
+            .map((endpoint) => endpoint.connection)
         return {
             connections: managedConnections.map((connection) => connection.getDiagnosticInfo()),
             connectionCount: this.endpoints.size

packages/dht/src/connection/ConnectionManager.ts

@@ -148,7 +148,7 @@ export const createDecoratedContract = <T extends BaseContract>(
      * single-value results: the return type of contract.functions[methodName] is always
      * Promise<Result> (see https://docs.ethers.org/v6/api/contract/#BaseContract)
      */
-    const methodNames = contract.interface.fragments.filter((f) => FunctionFragment.isFunction(f)).map((f) => (f as FunctionFragment).name)
+    const methodNames = contract.interface.fragments.filter((f) => FunctionFragment.isFunction(f)).map((f) => f.name)
     methodNames.forEach((methodName) => {
         decoratedContract[methodName] = createWrappedContractMethod(
             contract,