GIT_SILENT Upgrade release service version to 21.04.3.

According to the smartctl man page:
```
EXIT STATUS
The  exit  statuses of smartctl are defined by a bitmask.  If all is well with the disk, the exit status (return value) of smartctl is 0 (all bits turned off).  If a problem occurs, or an error, potential error, or fault is detected, then a non-zero status is
returned.  In this case, the eight different bits in the exit status have the following meanings for ATA disks; some of these values may also be returned for SCSI disks.

Bit 0: Command line did not parse.

Bit 1: Device open failed, device did not return an IDENTIFY DEVICE structure, or device is in a low-power mode (see '-n' option above).

Bit 2: Some SMART or other ATA command to the disk failed, or there was a checksum error in a SMART data structure (see '-b' option above).

Bit 3: SMART status check returned "DISK FAILING".

Bit 4: We found prefail Attributes <= threshold.

Bit 5: SMART status check returned "DISK OK" but we found that some (usage or prefail) Attributes have been <= threshold at some time in the past.

Bit 6: The device error log contains records of errors.

Bit 7: The device self-test log contains records of errors.  [ATA only] Failed self-tests outdated by a newer successful extended self-test are ignored.
```

BUG: 429028

CMakeLists.txt

@@ -9,8 +9,8 @@ cmake_minimum_required(VERSION 3.1 FATAL_ERROR)
 
 # KDE Application Version, managed by release script
 set (RELEASE_SERVICE_VERSION_MAJOR "21")
-set (RELEASE_SERVICE_VERSION_MINOR "03")
-set (RELEASE_SERVICE_VERSION_MICRO "70")
+set (RELEASE_SERVICE_VERSION_MINOR "04")
+set (RELEASE_SERVICE_VERSION_MICRO "3")
 set (RELEASE_SERVICE_VERSION "${RELEASE_SERVICE_VERSION_MAJOR}.${RELEASE_SERVICE_VERSION_MINOR}.${RELEASE_SERVICE_VERSION_MICRO}")
 project(kpmcore VERSION ${RELEASE_SERVICE_VERSION})
 

src/core/smartparser.cpp

@@ -117,7 +117,11 @@ void SmartParser::loadSmartOutput()
     if (m_SmartOutput.isEmpty()) {
         ExternalCommand smartctl(QStringLiteral("smartctl"), { QStringLiteral("--all"), QStringLiteral("--json"), devicePath() });
 
-        if (smartctl.run() && smartctl.exitCode() == 0) {
+        // Exit status of smartctl is a bitfield, check that bits 0 and 1 are not set:
+        //  - bit 0: command line did not parse;
+        //  - bit 1: device open failed.
+        // See `man 8 smartctl` for more details.
+        if (smartctl.run() && (smartctl.exitCode() & 1) == 0 && (smartctl.exitCode() & 2) == 0) {
             QByteArray output = smartctl.rawOutput();
 
             m_SmartOutput = QJsonDocument::fromJson(output);

src/util/org.kde.kpmcore.externalcommand.policy

@@ -13,12 +13,14 @@ SPDX-License-Identifier: CC0-1.0
       <description xml:lang="ast">Aniciu del degorriu de comandos esternos</description>
       <description xml:lang="ca">Inicia el dimoni d'ordres externes</description>
       <description xml:lang="ca@valencia">Inicia el dimoni d'ordres externes</description>
+      <description xml:lang="cs">Spustit démona externích příkazů</description>
       <description xml:lang="de">Externen Befehlsdienst starten</description>
       <description xml:lang="el">Εκκίνηση διεργασίας με εξωτερική εντολή</description>
       <description xml:lang="en_GB">Start external command daemon</description>
       <description xml:lang="es">Iniciar el demonio de órdenes externas</description>
       <description xml:lang="fr">Lancer le démon externe de commandes</description>
       <description xml:lang="it">Avvia demone per comando esterno</description>
+      <description xml:lang="ko">외부 명령 데몬 시작</description>
       <description xml:lang="lt">Paleisti išorinių komandų tarnybą</description>
       <description xml:lang="nl">Start externe opdrachtdaemon</description>
       <description xml:lang="pl">Rozpocznij usługę zewnętrznego polecenia</description>
@@ -31,12 +33,14 @@ SPDX-License-Identifier: CC0-1.0
       <message xml:lang="ast">Ríquense los privilexos alministrativos pa xestionar discos</message>
       <message xml:lang="ca">Es requereixen privilegis d'administrador per a gestionar els discs</message>
       <message xml:lang="ca@valencia">Es requereixen privilegis d'administrador per a gestionar els discs</message>
+      <message xml:lang="cs">Pro správu disků jsou potřeba práva administrátora</message>
       <message xml:lang="de">Systemverwalterrechte sind zur Verwaltung von Festplatten erforderlich</message>
       <message xml:lang="el">Απαιτούνται δικαιώματα διαχειριστή για τη διαχείριση των δίσκων</message>
       <message xml:lang="en_GB">Administrative privileges are required to manage disks</message>
       <message xml:lang="es">Se necesitan permisos de administrador para gestionar discos</message>
       <message xml:lang="fr">Vous devez disposer des privilèges d'administrateur pour gérer les disques.</message>
       <message xml:lang="it">Per gestire il disco sono richiesti privilegi amministrativi</message>
+      <message xml:lang="ko">디스크를 관리하려면 권한이 필요함</message>
       <message xml:lang="lt">Diskų tvarkymui reikalingos administratoriaus teisės</message>
       <message xml:lang="nl">Er zijn administratieve rechten vereist om schijven te beheren</message>
       <message xml:lang="pl">Do zarządzania dyskami wymagane są uprawnienia administratora</message>