Signing iOS app fails due to missing Xcode variable

Building our iOS app fails in the build rule that creates the entitlements file with the following error:

ERROR: TypeError: incompatible type of argument(s) in call to readFromData(); candidates were
    readFromData(QByteArray)
	 at JavaScriptCommand.sourceCode
	 at Rule.prepare in /usr/local/Cellar/qbs/1.24.1/share/qbs/modules/codesign/apple.qbs:301:18 

A little investigation showed that this is caused by the code not being able to read the provisioning profile which is an input from a previous rule ("codesign.embedded_provisioningprofile"). The reason it doesn't work is because this artifact's file name is determined by a property that used to be set by Xcode:

// apple.qbs:183
readonly property string _embeddedProfileName:
    (xcode._platformProps || {})["EMBEDDED_PROFILE_NAME"]    

The EMBEDDED_PROFILE_NAME variable doesn't exist anymore in Xcode 14.2 (maybe starting at 14.0, not verified).

For the time being I fixed it by hardcoding the value to "embedded.mobileprovision" but I'm not sure how to fix it properly as I couldn't find any other way to get it from the new Xcode version.