Update updateCheck and addonStore URLs to use new NV Access endpoints (#17680)

Summary of the issue:
NV Access has changed the update check and add-on store endpoint URLS.
While these are forwarded for now, NVDA should migrate over

Description of user facing changes
Use new URLs

Description of development approach
Use new URLs

Testing strategy:
Tested by setting mirrors manually in NVDA settings

Known issues with pull request:
None

Author: seanbudd

source/addonStore/network.py

@@ -42,7 +42,7 @@
 	from gui.addonStoreGui.viewModels.addonList import AddonListItemVM
 
 
-_DEFAULT_BASE_URL = "https://nvaccess.org/addonStore"
+_DEFAULT_BASE_URL = "https://addonStore.nvaccess.org"
 _LATEST_API_VER = "latest"
 """
 A string value used in the add-on store to fetch the latest version of all add-ons,

source/updateCheck.py

@@ -70,7 +70,7 @@
 from utils.tempFile import _createEmptyTempFileForDeletingFile
 
 #: The URL to use for update checks.
-_DEFAULT_CHECK_URL = "https://www.nvaccess.org/nvdaUpdateCheck"
+_DEFAULT_CHECK_URL = "https://api.nvaccess.org/nvdaUpdateCheck"
 #: The time to wait between checks.
 CHECK_INTERVAL = 86400  # 1 day
 #: The time to wait before retrying a failed check.