Fix release note generation

There has been some changes upstream that we need to adapt to.
With this we explicitly set the release tag, disable area prefix and kubernetes support notes.

Signed-off-by: Lennart Jern <[email protected]>

Author: lentzi90

Makefile

@@ -477,7 +477,9 @@ generate-release-notes: $(RELEASE_NOTES_DIR) $(RELEASE_NOTES)
 	if [ -n "${PRE_RELEASE}" ]; then \
 	echo -e ":rotating_light: This is a RELEASE CANDIDATE. Use it only for testing purposes. If you find any bugs, file an [issue](https://github.com/kubernetes-sigs/cluster-api-provider-openstack/issues/new/choose).\n" >> $(RELEASE_NOTES_DIR)/$(RELEASE_TAG).md; \
 	fi
-	"$(RELEASE_NOTES)" --from=$(PREVIOUS_TAG) >> $(RELEASE_NOTES_DIR)/$(RELEASE_TAG).md
+	"$(RELEASE_NOTES)" --repository=kubernetes-sigs/cluster-api-provider-openstack \
+	  --prefix-area-label=false --add-kubernetes-version-support=false \
+	  --from=$(PREVIOUS_TAG) --release=$(RELEASE_TAG) >> $(RELEASE_NOTES_DIR)/$(RELEASE_TAG).md
 
 .PHONY: templates
 templates: ## Generate cluster templates