Go version depend bucket header size that may cuase go version upgrade issuse for DB

In `` go.etcd.io/bbolt/internal/common`` bucket header size is
```go
const BucketHeaderSize = int(unsafe.Sizeof(InBucket{}))
```
"``unsafe`` package may be non-portable and are not protected by the Go 1 compatibility guidelines."
https://pkg.go.dev/unsafe#pkg-overview
So header size for structs might change in the future Go versions.