Use phony to ensure specific makefile targets are always executed

Description

Make is file-target based, so if a file "clean" exists in your root directory make won't execute the commands in the clean target. This just enforced to run the make commands always as the "target" is always out of date.

We had some issues with the local installation of the tools in the past, maybe this will solve it.

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

controller/Makefile

@@ -16,6 +16,7 @@ GOCOVER_COBERTURA=v1.2.0
 
 all: build
 
+.PHONY: install-tools
 install-tools:
 	@echo Install development tooling
 	mkdir -p $(GOSDN_PRG)
@@ -30,6 +31,7 @@ ci-install-tools:
 build:
 	$(GOBUILD) -o $(BINARY_NAME) ./cmd/gosdn
 
+.PHONY: clean
 clean:
 	$(GOCLEAN)
 	rm -f $(BINARY_NAME)