Remote catalog URL generates with a double slash when building Addressables content with Build Remote Catalog enabled

How to reproduce:

1. Create and open a new project
2. In the Package Manager, install the Addressables package
3. In the top menu click (Window > Asset Management > Addressables > Groups)
4. In the Addressables Groups window, click “Create Addressables Settings”
5. In the top menu click (Window > Asset Management > Addressables > Profiles)
6. In the Addressables Profiles window, set (Remote > Remote.LoadPath) to “https://example.com/foo/[BuildTarget]”
7. In the Project window, select (AddressableAssetsData/AddressableAssetSettings)
8. In the Inspector window, tick (Catalog > Build Remote Catalog) checkbox
9. In the Project window click (Create > Material)
10. In the Inspector window, tick the “Addressable” checkbox
11. In the Addressables Groups window, click (Build > New Build > Default Build Script)
12. In Finder, within the project folder open “Library/com.unity.addressables/aa/OSX/settings.json” in a text editor
13. Observe the “AddressablesMainContentCatalogRemoteHash” URL within the text editor

Actual result: The remote catalog URL contains a double slash: https://example.com/foo/StandaloneOSX//catalog_1.0.hash
Expected result: The remote catalog URL contains a single slash: https://example.com/foo/StandaloneOSX/catalog_1.0.hash

Reproducible with: 3.0.0 (6000.6.0a1 (b0e692525f04)), 3.1.0 (6000.6.0a7)
Not reproducible with: 2.11.1 (6000.6.0a7)

Reproducible on: macOS 26.5.1 (M1 Max)
Not reproducible on: No other environments tested

Workaround: Replace the double slash in the generated “settings.json” file with single slash using a text editor