Modifies snap install logic

- adds golangci-lint
- adds go

Makefile

@@ -76,22 +76,25 @@ testmicrok8s:
 ## testmicrok8s: Run unit tests against microk8s
 	TF_ACC=1 TEST_CLOUD=microk8s go test ./... -v $(TESTARGS) -timeout 120m
 
+PACKAGES=terraform golangci-lint go
+# Function to check if Snap packages are installed
+check-snap-package:
+	@for package in $(PACKAGES); do \
+		if snap list $$package >/dev/null 2>&1; then \
+			echo "Package $$package is already installed."; \
+		else \
+			echo "Package $$package is not installed."; \
+			sudo snap install $$package --classic; \
+		fi; \
+	done
+
 .PHONY: install-snap-dependencies
-install-snap-dependencies:
-## install-snap-dependencies: Install snap dependencies for terraform-provider-juju
-	@echo "Installing snap dependencies"
-ifneq ($(HAS_TERRAFORM),)
-	@echo "Refreshing terraform snap"
-	@sudo snap refresh terraform --classic
-else
-	@echo "Installing terraform snap"
-	@sudo snap install terraform --classic
-endif
+install-snap-dependencies: check-snap-package
+## install-snap-dependencies: Install all the snap dependencies
 
 .PHONY: install-dependencies
 install-dependencies: install-snap-dependencies
 ## install-dependencies: Install all the dependencies
-	@echo "Installing dependencies"