Cypress tests fail under rust crypto

[richvdh]

Current situation, based on https://cloud.cypress.io/projects/ppvnzg/runs/17700/overview:

• A lot of the read-receipts tests are still failing, despite Fix read receipt tests with incorrect read counts matrix-org/matrix-react-sdk#11465. Presumably due to Notification counts may be incorrectly reset by sent messages matrix-org/matrix-js-sdk#3684.
• The soft-logout tests intermittently report things like null pointer passed to rust, despite Fix incompatibility of Soft Logout with Element-R matrix-org/matrix-react-sdk#11468. This is because the shutdown of the rust SDK caused by soft-logout is racing with other operations. I have PRs in progress to fix this (RustCrypto.getCrossSigningStatus: check the client is not stopped matrix-org/matrix-js-sdk#3682, Improve error handling for DeviceListener matrix-org/matrix-react-sdk#11484)
• "should be able to add and remove filters via keyboard" is also flaky on legacy crypto: Flaky cypress test "Spotlight > should be able to add and remove filters via keyboard" #26053

[richvdh]

As of https://cloud.cypress.io/projects/ppvnzg/runs/17774, the only tests failing are the read-receipts tests, presumably matrix-org/matrix-js-sdk#3684.

[richvdh]

Now that matrix-org/matrix-js-sdk#3684 is fixed, this seems to be working 🎉

[richvdh]

see https://github.com/matrix-org/matrix-js-sdk/actions/runs/6106756558 for example