Bump version of the react-sdk cypress workflow file

`cypress.yaml` is currently pinned to an old version of the react-sdk, meaning
that each attempt to run it is currently failing with an error.

#3461 made a change to the
js-sdk workflow file which also required

Author: richvdh

.github/workflows/cypress.yml

@@ -15,7 +15,7 @@ concurrency:
 jobs:
     cypress:
         name: Cypress
-        uses: matrix-org/matrix-react-sdk/.github/workflows/cypress.yaml@v3.73.1
+        uses: matrix-org/matrix-react-sdk/.github/workflows/cypress.yaml@v3.74.0
         permissions:
             actions: read
             issues: read