Makefile: add missing RELEASE_VERSION and RELEASE_DIR variables

Signed-off-by: Vincent Demeester <[email protected]>

Makefile

@@ -2,6 +2,10 @@
 CHART_NAME ?= $(shell awk '/^name:/ { print $$2 }' Chart.yaml)
 CHART_VESION ?= $(shell awk '/^version:/ { print $$2 }' Chart.yaml)
 
+RELEASE_VERSION = v$(CHART_VERSION)
+# release directory where the Tekton resources are rendered into.
+RELEASE_DIR ?= /tmp/$(CHART_NAME)-$(CHART_VERSION)
+
 # bats entry point and default flags
 BATS_CORE = ./test/.bats/bats-core/bin/bats
 BATS_FLAGS ?= --print-output-on-failure --show-output-of-passing-tests --verbose-run