Upgrading multiple databases gives duplicate confirmation dialog boxes

[shati-patel]

Describe the bug

When I select multiple databases for upgrade, the extension pops up an "upgrade confirmation" dialog box for each database. I then get an additional confirmation box for one of the databases that I've already confirmed.

Version

CodeQL extension version: 1.5.1 CodeQL CLI version: 2.5.5 VS Code version: 1.57.1 Platform: win32 x64

To reproduce

1. In the "Databases" UI view, select multiple databases.
2. Right-click and select Upgrade Database.
3. Click "Yes" for each upgrade confirmation dialog. (One for each database, as expected.)
4. An additional dialog pops up for one of the databases from step 3.

Expected behavior I only need to confirm upgrades once per database.

Additional context

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