[Chip-Cert] Avoid Serialized packet loss (chip-cert genCert - Chip_Base64) (#13853)
[Chip-Cert] Avoid Serialized packet loss (chip-cert genCert - Chip_Base64) (#13853)

* Avoid serializedKeyPair packet loss in keyFormat_Chip_Base64 mode

* Restyled by clang-format

Co-authored-by: Restyled.io <eb8d3fd3977bb570908ffc25e24391520747defb@restyled.io>
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