chore: Replace deprecated io/ioutil functions with recommended alternatives (#9542)

# Which Problems Are Solved

- The `io/ioutil` package was deprecated in Go 1.16.  
  - Reference: https://go.dev/doc/go1.16#ioutil  

# How the Problems Are Solved

- Replaced deprecated functions with their recommended alternatives:  
  - `ioutil.ReadFile` → `os.ReadFile`  
  - `ioutil.ReadAll` → `io.ReadAll`  
  - `ioutil.NopCloser` → `io.NopCloser`

internal/query/message_text.go

@@ -6,7 +6,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"os"
 	"time"
 
@@ -320,7 +320,7 @@ func (q *Queries) readTranslationFile(namespace i18n.Namespace, filename string)
 	if err != nil {
 		return nil, zerrors.ThrowInternal(err, "QUERY-93njw", "Errors.TranslationFile.ReadError")
 	}
-	contents, err := ioutil.ReadAll(r)
+	contents, err := io.ReadAll(r)
 	if err != nil {
 		return nil, zerrors.ThrowInternal(err, "QUERY-l0fse", "Errors.TranslationFile.ReadError")
 	}