compilation error: 'class QSignalSpy' has no member named 'deleteLater'

### Pre-submission Checks

- [x] I [checked for similar issues](https://github.com/owncloud/client/issues?q=), but could not find any. I also checked the closed issues. I could not contribute additional information to any existing issue.
- [x] I will take the time to fill in all the required fields. I know that the bug report may be dismissed otherwise due to lack of information.

### Describe the bug

Hello, there is a compilation error on alpine edge architecture amd64
- gcc 14.3.0
- glib 2.84.3
- musl 1.2.5

the error is:
```
/hole/not_ready/owncloud-client/src/client-5.3.2/test/testcredentialmanager.cpp:115:16: error: 'class QSignalSpy' has no member named 'deleteLater'
  115 |             s->deleteLater();
      |                ^~~~~~~~~~~
/hole/not_ready/owncloud-client/src/client-5.3.2/test/testcredentialmanager.cpp:134:20: error: 'class QSignalSpy' has no member named 'deleteLater'
  134 |                 s->deleteLater();
      |                    ^~~~~~~~~~~
```


### Expected behavior

compilation succeeds

### Steps to reproduce the issue

1. save those apkbuilds

```
pkgname=libre-graph-api-cpp-qt-client
pkgver=1.0.4
pkgrel=0
pkgdesc="Ownclouds' free API for cloud collaboration inspired by the MS Graph API"
url="https://github.com/owncloud/libre-graph-api-cpp-qt-client"
arch="all"
license="Apache-2.0"
depends=
makedepends="extra-cmake-modules glib-dev cmake cmake-extras qt6-qtbase-dev qt5-qtbase-dev samurai"
subpackages="$pkgname-dev"
source="$pkgname-$pkgver.tar.gz::https://github.com/owncloud/libre-graph-api-cpp-qt-client/archive/refs/tags/v$pkgver.tar.gz"
options="!check"

build() {
    cd client
	cmake -DCMAKE_POLICY_VERSION_MINIMUM=3.5 -B build -G Ninja \
		-DCMAKE_BUILD_TYPE="Release" \
		-DCMAKE_INSTALL_PREFIX=/usr \
		-DCMAKE_INSTALL_LIBDIR=lib \
		-DCMAKE_INSTALL_INCLUDEDIR=/usr/include \
		-DBUILD_SHARED_LIBS=ON \
		-DCMAKE_INSTALL_SYSCONFDIR=/etc/$pkgname
	cmake --build build
}

package() {
    cd client
    DESTDIR="$pkgdir" cmake --install build
}
```

```
pkgname=owncloud-client
pkgver=5.3.2
pkgrel=0
pkgdesc="ownCloud Desktop Client"
url="https://github.com/owncloud/client"
arch="all"
license="GPL-2.0-or-later"
depends=
makedepends="samurai  kdsingleapplication-dev  qt6-qtbase-dev qt5-qtbase-dev  extra-cmake-modules glib-dev cmake qt6-qttools-dev cmake-extras libayatana-appindicator-dev qt6-qtwebengine-dev qtkeychain-dev sqlite-dev qt6-qtquick3d-dev  qt6-qtscxml-dev libre-graph-api-cpp-qt-client-dev "
subpackages="$pkgname-dev"
source="$pkgname-$pkgver.tar.gz::https://github.com/owncloud/client/archive/refs/tags/v$pkgver.tar.gz"
options="!check"

build() {
    cd client-$pkgver
    cmake -DCMAKE_POLICY_VERSION_MINIMUM=3.5 -B build -G Ninja \
		-DCMAKE_BUILD_TYPE="Release" \
		-DCMAKE_INSTALL_LIBDIR=lib \
		-DCMAKE_INSTALL_PREFIX=/usr \
		-DCMAKE_INSTALL_INCLUDEDIR=/usr/include \
		-DBUILD_SHARED_LIBS=ON \
		-DCMAKE_INSTALL_SYSCONFDIR=/etc/$pkgname
	cmake --build build
}

package() {
    cd src/client-$pkgver
    DESTDIR="$pkgdir" cmake --install build
}
```

2. use vm or docker container alpine:edge and mount dir with it.
3. use below script to setup building user

```
apk -U upgrade
apk add bash git wget curl alpine-sdk abuild sudo shadow
adduser runner -u 1003 -D -s /bin/bash -G wheel
addgroup -g 1003 runner
addgroup runner abuild
addgroup runner runner
chmod 660 /etc/sudoers
echo "%wheel ALL=(ALL:ALL) NOPASSWD: ALL" >> /etc/sudoers
chmod 440 /etc/sudoers
mkdir -p /var/cache/distfiles
chmod a+w /var/cache/distfiles
chsh -s /bin/bash
chsh -s /bin/bash runner
su - runner -c 'mkdir ~/.abuild'
su - runner -c 'abuild-keygen -a'
```

4. switch to user runner and gen sign keys, else abuild wont work `abuild-keygen -a` and confirm

5. go to directory containing lib first and do `abuild checksum` then do `abuild -r`

6. switch to root ad run `apk add /home/runner/packages/not_ready/x86_64/libre-graph-api-cpp-qt-client-1.0.4-r0.apk --allow-untrusted` then `apk add /home/runner/packages/not_ready/x86_64/libre-graph-api-cpp-qt-client-dev-1.0.4-r0.apk --allow-untrusted`
7. repeat step no. 4 for ownloud-client then you'll se error

### Screenshots

```
/hole/not_ready/owncloud-client/src/client-5.3.2/test/testcredentialmanager.cpp:115:16: error: 'class QSignalSpy' has no member named 'deleteLater'
  115 |             s->deleteLater();
      |                ^~~~~~~~~~~
/hole/not_ready/owncloud-client/src/client-5.3.2/test/testcredentialmanager.cpp:134:20: error: 'class QSignalSpy' has no member named 'deleteLater'
  134 |                 s->deleteLater();
      |                    ^~~~~~~~~~~
```

### Logs

_No response_

### Client version number

libre-graph-api-cpp-qt-client 1.0.4
owncloud-client version 5.3.2 Installing git-perl (2.50.0-r0)

### Desktop environment (Linux only)

Alpine Linux Edge arch amd64

### Client package version and origin (Linux only)

_No response_

### Installation path (Windows only)

_No response_

### Server information

_No response_

### Additional context

_No response_

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compilation error: 'class QSignalSpy' has no member named 'deleteLater' #12205

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compilation error: 'class QSignalSpy' has no member named 'deleteLater' #12205

Description

Pre-submission Checks

Describe the bug

Expected behavior

Steps to reproduce the issue

Screenshots

Logs

Client version number

Desktop environment (Linux only)

Client package version and origin (Linux only)

Installation path (Windows only)

Server information

Additional context

Metadata

Metadata

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