chore: ignore major update from dependabot & add make default target

Author: hbollon

.github/dependabot.yml

@@ -12,3 +12,8 @@ updates:
       interval: "weekly"
     labels:
       - "dependencies"
+    ignore:
+      - dependency-name: "*"
+        update-types:
+          - "version-update:semver-major" # Ignore major updates
+

Makefile

@@ -3,6 +3,8 @@ DOCKER_TAG ?= latest
 
 export DOCKER_BUILDKIT=1
 
+.DEFAULT_GOAL := help
+
 .PHONY: build
 build: ## Build docker image
 	docker build --tag=camptocamp/geoshop-api:$(VERSION) \