chore: bump version to 0.5.0

Also point make push at origin; upstream remote does not exist.

Makefile

@@ -85,8 +85,8 @@ tag: ## Create and push git tag for current version
 	@echo "Run 'make push' to push tag and trigger release"
 
 push: ## Push current branch and tags
-	git push upstream
-	git push upstream --tags
+	git push origin
+	git push origin --tags
 
 # Utility commands
 clean: ## Clean build artifacts

cmd/shush/main.go

@@ -12,7 +12,7 @@ import (
 	"github.com/carlosarraes/shush/internal/types"
 )
 
-var version = "0.4.2"
+var version = "0.5.0"
 
 func main() {
 	var cliArgs types.CLI