Regenerate Makefile with the latest version of gomakegen

Makefile

@@ -1,6 +1,6 @@
 ################################################################################
 
-# This Makefile generated by GoMakeGen 3.0.6 using next command:
+# This Makefile generated by GoMakeGen 3.1.0 using next command:
 # gomakegen --mod --strip .
 #
 # More info: https://kaos.sh/gomakegen
@@ -11,6 +11,10 @@ ifdef VERBOSE ## Print verbose information (Flag)
 VERBOSE_FLAG = -v
 endif
 
+ifdef PROXY ## Force proxy usage for downloading dependencies (Flag)
+export GOPROXY=https://proxy.golang.org/cached-only,direct
+endif
+
 COMPAT ?= 1.19
 MAKEDIR = $(dir $(realpath $(firstword $(MAKEFILE_LIST))))
 GITREV ?= $(shell test -s $(MAKEDIR)/.git && git rev-parse --short HEAD)
@@ -109,6 +113,6 @@ help: ## Show this info
 		| sed 's/ifdef //' \
 		| awk 'BEGIN {FS = " .*?## "}; {printf "  \033[32m%-11s\033[0m  %s\n", $$1, $$2}'
 	@echo -e ''
-	@echo -e '\033[90mGenerated by GoMakeGen 3.0.6\033[0m\n'
+	@echo -e '\033[90mGenerated by GoMakeGen 3.1.0\033[0m\n'
 
 ################################################################################