PR #10454 added a `cancellable bool` parameter to GalleryStore.UpdateProgress
but missed two callers under tests/e2e/distributed, breaking the build on
master (golangci-lint and tests-e2e-backend both failed to compile with
"not enough arguments in call to ... UpdateProgress").
Pass cancellable=true (both ops are downloading installs, which are
cancellable) and assert the flag is persisted, exercising the new behavior.
Assisted-by: Claude:claude-opus-4-8 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>