Update Go version to 1.19 in the makefile (#876)

Signed-off-by: Cosmin Cojocar <[email protected]>

Signed-off-by: Cosmin Cojocar <[email protected]>

Author: ccojocar

Makefile

@@ -14,7 +14,7 @@ GOSEC ?= $(GOBIN)/gosec
 GINKGO ?= $(GOBIN)/ginkgo
 GO_MINOR_VERSION = $(shell $(GO) version | cut -c 14- | cut -d' ' -f1 | cut -d'.' -f2)
 GOVULN_MIN_VERSION = 17
-GO_VERSION = 1.18
+GO_VERSION = 1.19
 
 default:
 	$(MAKE) build