Update Functions examples to use Sepolia

[thedriftofwords]

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Below is a summarization created by an LLM (gpt-4-turbo). Be mindful of hallucinations and verify accuracy.

Why

The changes across multiple JavaScript files in the functions-examples directory primarily involve updating configurations to switch from the Polygon Mumbai test network to the Ethereum Sepolia test network. This includes updates to network-specific parameters such as router addresses, link token addresses, and RPC URLs.

What

• request.js (multiple occurrences)
  • Updated the network configuration from Polygon Mumbai to Ethereum Sepolia, which includes changes to routerAddress, linkTokenAddress, donId, and explorerUrl.
  • Changed the RPC URL environment variable from POLYGON_MUMBAI_RPC_URL to ETHEREUM_SEPOLIA_RPC_URL.
• updateRequest.js
  • Similar to request.js, updated network configurations for Ethereum Sepolia and adjusted related variables and URLs.
  • Added linkTokenAddress and explorerUrl to align with the new network settings.
• readLatest.js
  • Updated only the RPC URL environment variable to match the Ethereum Sepolia network.
• gen-offchain-secrets.js and request.js (7-use-secrets-url)
  • Updated router address and DON ID to match the Ethereum Sepolia configurations.
• Multiple other example files
  • Consistently updated across various script files, replacing the network configuration from Polygon Mumbai to Ethereum Sepolia, which involves updating router addresses, link token addresses, DON IDs, and explorer URLs.
  • Adjusted RPC URL and other network-specific settings to align with Ethereum Sepolia.