Fix TestBuildSnapshot_RankInvariant for SQL-level filtering

The test was passing UNCATEGORISED categories to buildSnapshot
and expecting them to be filtered out. Now that filtering
happens at the query level, the test input should only contain
consent categories.

Signed-off-by: Émile Ré <emile@getprobo.com>

pkg/cookiebanner/service_test.go

@@ -273,15 +273,13 @@ func TestBuildSnapshot_RankInvariant(t *testing.T) {
 		assert.True(t, snapshotsEqual(a, b))
 	})
 
-	t.Run("Necessary comes first and uncategorised is excluded", func(t *testing.T) {
+	t.Run("Necessary comes first given consent-only categories", func(t *testing.T) {
 		t.Parallel()
 
-		snap := buildSnapshot(banner, mkCategories(0, 1, 2, 3), nil)
+		consentOnly := mkCategories(0, 1, 2, 3)[:3]
+		snap := buildSnapshot(banner, consentOnly, nil)
 
 		require.Len(t, snap.Categories, 3)
 		assert.Equal(t, coredata.CookieCategoryKindNecessary, snap.Categories[0].Kind)
-		for _, c := range snap.Categories {
-			assert.NotEqual(t, coredata.CookieCategoryKindUncategorised, c.Kind)
-		}
 	})
 }