Support dynamic resource selection

.local/share/github-versions/minikube

@@ -5,7 +5,10 @@ IFS=$'\n\t'
 
 package=minikube
 repo=kubernetes/minikube
-resource=minikube-linux-amd64
+
+minikube_resource() {
+    echo "minikube-linux-amd64"
+}
 
 install_minikube() {
     tempfile="$(mktemp)"
@@ -14,4 +17,4 @@ install_minikube() {
     mv "${tempfile}" "$(systemd-path user-binaries)"/minikube
 }
 
-github_update "${package}" "${repo}" "${resource}" install_minikube
+github_update "${package}" "${repo}" minikube_resource install_minikube