Move source of truth for latest.json url into ApplicationMetadata.py and out of the Uranium repository.

CURA-9272

cura/ApplicationMetadata.py

@@ -9,12 +9,20 @@ DEFAULT_CURA_DISPLAY_NAME = "Ultimaker Cura"
 DEFAULT_CURA_VERSION = "dev"
 DEFAULT_CURA_BUILD_TYPE = ""
 DEFAULT_CURA_DEBUG_MODE = False
+DEFAULT_CURA_LATEST_URL = "https://raw.githubusercontent.com/Ultimaker/Uranium/CURA-9272_semver_postfix/tests/latest.json"
 
 # Each release has a fixed SDK version coupled with it. It doesn't make sense to make it configurable because, for
 # example Cura 3.2 with SDK version 6.1 will not work. So the SDK version is hard-coded here and left out of the
 # CuraVersion.py.in template.
 CuraSDKVersion = "8.1.0"
 
+try:
+    from cura.CuraVersion import CuraLatestURL
+    if CuraLatestURL == "":
+        CuraLatestURL = DEFAULT_CURA_LATEST_URL
+except ImportError:
+    CuraLatestURL = DEFAULT_CURA_LATEST_URL
+
 try:
     from cura.CuraVersion import CuraAppName  # type: ignore
     if CuraAppName == "":

cura/CuraApplication.py

@@ -152,6 +152,7 @@ class CuraApplication(QtApplication):
         super().__init__(name = ApplicationMetadata.CuraAppName,
                          app_display_name = ApplicationMetadata.CuraAppDisplayName,
                          version = ApplicationMetadata.CuraVersion if not ApplicationMetadata.IsAlternateVersion else ApplicationMetadata.CuraBuildType,
+                         latest_url = ApplicationMetadata.CuraLatestURL,
                          api_version = ApplicationMetadata.CuraSDKVersion,
                          build_type = ApplicationMetadata.CuraBuildType,
                          is_debug_mode = ApplicationMetadata.CuraDebugMode,