Fix resource tests
This MR fixes the two tests that @rempt reported to me.
One was, yet again, a missed case of how we name memory-backed bundles in Krita (for which this time I exhaustively listed them in the test suite); the other was a side effect of !1175 (merged), Dmitry forgot to account for the deduplication in the temporary resource addition test.
Test Plan
Build Krita and run TestResourceStorage and TestResourceModel.
Formalities Checklist
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I confirmed this builds. -
I confirmed Krita ran and the relevant functions work. -
I tested the relevant unit tests and can confirm they are not broken. (If not possible, don't hesitate to ask for help!) -
I made sure my commits build individually and have good descriptions as per KDE guidelines. -
I made sure my code conforms to the standards set in the HACKING file. -
I can confirm the code is licensed and attributed appropriately, and that unattributed code is mine, as per KDE Licensing Policy.