Update dependency ethers to v6.16.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
ethers (source)	6.14.4 -> 6.16.0

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Release Notes

ethers-io/ethers.js (ethers)

v6.16.0

Compare Source

• Added utility method to split EIP-7594 BLOb proofs into its cells (88dfe96).
  • Update Alchemy URL endpoint for mainnet (#​5052; 719b01d).
  • Fail on unsupported Etherscan networks immediately to better support the default provider (94b333b).
  • Added Filecoin network and Ankr endpoints (#​5038; 986e827).
  • Moved to better API for EIP-7594 PeerDAS (#​5062; 452b422).
  • Added initial EIP-7594 PeerDAS support (#​5054, #​5062; 6d64889).
  • Support RegExp engines with string length limitations (#​4967; f0dfbe1).
  • Added Transaction and Signature support for non-canonical S values (#​4223, #​5013; 855d727).
  • Allow zero-width big-endian data for toBeHex and allow widths fo toBeArray (#​5025; 540f30c).

v6.15.0

Compare Source

• Allow non-canonical S values in Signatures moving errors to access-time (#​5013; 9944ec9).

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