Bump chia-blockchain-gui to 2.0.0-rc5 (#16085)

Bump chia-blockchain-gui to 623bcdbed1b8512cbbd056eab629eba20c694f20

* Added texts for effective size by @ChiaMineJP in Chia-Network/chia-blockchain-gui#1995
* Show `None` if plotNFT is not chosen in the add plot page by @ChiaMineJP in Chia-Network/chia-blockchain-gui#1992
* Fixed an issue where plotNFT was not created after changing plotter by @ChiaMineJP in Chia-Network/chia-blockchain-gui#1997
* Fixed testnet faucet url by @ChiaMineJP in Chia-Network/chia-blockchain-gui#1998

**Full Changelog**: Chia-Network/chia-blockchain-gui@2.0.0-rc4...2.0.0-rc5