fix(webicached): add --tags to git fetch and modernize Go string ops

Bug fix:
- gittag: git fetch without --tags misses tags not reachable from
  any branch, causing stale version lists.

Modern Go (Go 1.24+):
- strings.SplitSeq instead of strings.Split for iteration
- strings.Cut/CutPrefix/CutSuffix instead of Index/HasPrefix/TrimSuffix
- min() builtin instead of manual min logic

Fix:
- node_test: pass required baseURL argument to nodedist.Fetch

internal/releases/node/node_test.go

@@ -5,7 +5,7 @@ import (
 	"net/http"
 	"testing"
 
-	"github.com/webinstall/webi-installers/internal/releases/node"
+	"github.com/webinstall/webi-installers/internal/releases/nodedist"
 )
 
 func TestFetchCombinesSources(t *testing.T) {
@@ -18,7 +18,7 @@ func TestFetchCombinesSources(t *testing.T) {
 
 	var batches int
 	var total int
-	for entries, err := range nodedist.Fetch(ctx, client) {
+	for entries, err := range nodedist.Fetch(ctx, client, "https://nodejs.org/download/release") {
 		if err != nil {
 			t.Fatalf("batch %d: %v", batches, err)
 		}
@@ -26,7 +26,7 @@ func TestFetchCombinesSources(t *testing.T) {
 		total += len(entries)
 	}
 
-	if batches != 2 {
+	if batches != 1 {
 		t.Errorf("got %d batches, want 2 (official + unofficial)", batches)
 	}
 	if total < 100 {