Makefile: specify .PHONY targets

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>

Author: AnnaShaleva

Makefile

@@ -6,6 +6,8 @@ XK6_VERSION=1.3.5
 VERSION ?= $(shell git describe --tags --match "v*" --abbrev=8 2>/dev/null | sed -r 's,^v([0-9]+\.[0-9]+)\.([0-9]+)(-.*)?$$,\1 \2 \3,' | while read mm patch suffix; do if [ -z "$$suffix" ]; then echo $$mm.$$patch; else patch=`expr $$patch + 1`; echo $$mm.$${patch}-pre$$suffix; fi; done)
 LDFLAGS:=-s -w -X 'go.k6.io/k6/lib/consts.VersionDetails=xk6-neofs-$(VERSION)'
 
+.PHONY: build install_xk6 test lint format modernize
+
 # Build xk6-neofs binary
 build: install_xk6
 	@echo "=> Building binary"