Add latest tag (#3)

Co-authored-by: bxvtr <bxvtr@users.noreply.github.com>

Author: bxvtr

Makefile

@@ -17,7 +17,7 @@ endif
 
 # IMAGE_REPO=$(IMAGE_REGISTRY)/oci-secrets-store-csi-driver-provider
 IMAGE_URL=$(IMAGE_REGISTRY)/$(IMAGE_REPO_NAME)
-IMAGE_TAG=$(GIT_TAG)
+IMAGE_TAG?=latest
 IMAGE_PATH=$(IMAGE_URL):$(IMAGE_TAG)
 
 LDFLAGS?="-X github.com/oracle-samples/oci-secrets-store-csi-driver-provider/internal/server.BuildVersion=$(BUILD_VERSION)"