ci: go tool go-generate-fast

Author: igor-sirotin

Makefile

@@ -241,7 +241,7 @@ setup-dev:
 	echo "Replaced by Nix shell. Use 'make shell' or just any target as-is."
 
 generate: PACKAGES ?= $$(go list -e ./... | grep -v "/contracts/")
-generate: GO_GENERATE_CMD ?= $$(which go-generate-fast || echo 'go generate')
+generate: GO_GENERATE_CMD ?= go tool go-generate-fast
 generate: export GO_GENERATE_FAST_DEBUG ?= false
 generate: export GO_GENERATE_FAST_RECACHE ?= false
 generate:  ##@ Run generate for all given packages using go-generate-fast, fallback to `go generate` (e.g. for docker)