chore: render system bytecode by go:embed

[j75689]

Description

render system bytecode by go:embed

no impact on the system.

Rationale

As the system is upgraded, more and more upgrade.go files are expanding, making it difficult to open and review the code.

Use go:embed instead to render bytecode into the binary during compilation, which will reduce the difficulty of code maintenance in the future.

Example

n/a

Changes

Notable changes:

• systemcontracrs