Update go tool dependencies, restructure lint targets (#24239)

- Update all tool dependencies to latest tag
- Remove unused errcheck, it is part of golangci-lint
- Include main.go in air
- Enable wastedassign again now that it's
[generics-compatible](https://github.com/golangci/golangci-lint/pull/3689)
- Restructured lint targets to new `lint-*` namespace

modules/charset/escape_stream.go

@@ -47,7 +47,9 @@ func (e *escapeStreamer) EscapeStatus() *EscapeStatus {
 // Text tells the next streamer there is a text
 func (e *escapeStreamer) Text(data string) error {
 	sb := &strings.Builder{}
-	pos, until, next := 0, 0, 0
+	var until int
+	var next int
+	pos := 0
 	if len(data) > len(UTF8BOM) && data[:len(UTF8BOM)] == string(UTF8BOM) {
 		_, _ = sb.WriteString(data[:len(UTF8BOM)])
 		pos = len(UTF8BOM)

modules/templates/util_dict.go

@@ -108,7 +108,7 @@ func dumpVar(v any) template.HTML {
 		return "<pre>dumpVar: only available in dev mode</pre>"
 	}
 	m, ok := dumpVarMarshalable(v, map[uintptr]bool{})
-	dumpStr := ""
+	var dumpStr string
 	jsonBytes, err := json.MarshalIndent(m, "", "  ")
 	if err != nil {
 		dumpStr = fmt.Sprintf("dumpVar: unable to marshal %T: %v", v, err)

modules/timeutil/since.go

@@ -23,7 +23,7 @@ const (
 )
 
 func computeTimeDiffFloor(diff int64, lang translation.Locale) (int64, string) {
-	diffStr := ""
+	var diffStr string
 	switch {
 	case diff <= 0:
 		diff = 0

modules/translation/i18n/localestore.go

@@ -72,7 +72,6 @@ func (store *localeStore) AddLocaleByIni(langName, langDesc string, source, more
 			l.idxToMsgMap[idx] = key.Value()
 		}
 	}
-	iniFile = nil
 
 	return nil
 }