rand.Seed has been deprecated since Go 1.20 and an alternative has been available since Go 1.0: Programs that call Seed and then expect a specific sequence of results from the global random source (using functions such as Int) can be broken when a dependency changes how much it consumes from the global random source. To avoid such breakages, programs that need a specific result sequence should use NewRand(NewSource(seed)) to obtain a random generator that other packages cannot access. (SA1019)

rand.Read has been deprecated since Go 1.20 because it shouldn't be used: For almost all use cases, crypto/rand.Read is more appropriate. (SA1019)

this result of append is never used, except maybe in other appends (SA4010)

func fromFilRegisteredUpdateProof is unused (U1000)

Process completed with exit code 1.

File is not gofmt-ed.