Update dependency @openzeppelin/hardhat-upgrades to v2

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@openzeppelin/hardhat-upgrades (source)	^1.19.0 -> ^2.0.0

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Release Notes

OpenZeppelin/openzeppelin-upgrades (@​openzeppelin/hardhat-upgrades)

v2.3.2

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• Fix Hardhat compile error when using Solidity 0.5.x. (#​892)

v2.3.1

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• Check for non-zero admin address when importing transparent proxy. (#​887)

v2.3.0

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• Support new upgrade interface in OpenZeppelin Contracts 5.0. (#​883)
• Support importing and upgrading 5.0 proxies.
  • Note: Deploying 5.0 proxies is not supported yet.
• Add validations for namespaced storage layout. (#​876)

v2.2.1

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• Allow using proxy with different admin address than manifest. (#​859)

v2.2.0

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• Rename Platform to Defender. (#​863)

Note: Functions that were for OpenZeppelin Platform have breaking changes since the previous release and have been renamed for OpenZeppelin Defender. See (#​863) for details. OpenZeppelin Defender deployments is in beta and its functionality is subject to change.

v2.1.1

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• Use public Etherscan API from hardhat-verify. (#​857)

v2.1.0

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• Add txOverrides option for overriding transaction parameters. (#​852)

v2.0.2

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• Enable storage layout for overrides from Hardhat config. (#​851)

v2.0.1

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• Update OpenZeppelin Platform client dependencies. (#​845)

v2.0.0

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• Use ethers v6 and hardhat-ethers v3. (#​817)

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