Can not compile and run any fuzzers locally

[iszubok]

System information

Erigon version: erigon version 2021.11.1-alpha

OS & Version: Mac OS 11.6, Linux Ubuntu 20.04

Commit hash : 70461e4

Expected behaviour

Fuzzers can be built according to README.md

Actual behaviour

Compile errors when building fuzzers according to documentation

transaction_signing.go references symbols which are not compiled with CGO_ENABLED=0

Steps to reproduce the behaviour

1. Install go-fuzz according to documentation

2. cd tests/fuzzers/rlp

3. Try to build fuzzer

% go-fuzz-build .           
/Users/ivan/projects/erigon/core/types/transaction_signing.go:319:21: EcrecoverWithContext not declared by package crypto
-: no required module provides package github.com/dvyukov/go-fuzz/go-fuzz-dep; to add it:
	go get github.com/dvyukov/go-fuzz/go-fuzz-dep
typechecking of . failed

4. go get github.com/dvyukov/go-fuzz/go-fuzz-dep

5. Try building fuzzer again

CGO_ENABLED=0 go-fuzz-build .
/Users/ivan/projects/erigon/core/types/transaction_signing.go:188:55: Context not declared by package secp256k1
/Users/ivan/projects/erigon/core/types/transaction_signing.go:304:38: Context not declared by package secp256k1
/Users/ivan/projects/erigon/core/types/transaction_signing.go:184:40: DefaultContext not declared by package secp256k1
/Users/ivan/projects/erigon/core/types/transaction_signing.go:319:21: EcrecoverWithContext not declared by package crypto
typechecking of . failed