Tide should apparently play a major role in unblocking the vessel, according to
https://twitter.com/AgenciesLeth/status/1374708535603433472?...
Live local tide: https://www.tide-forecast.com/locations/Suez-Egypt/tides/lat...
https://twitter.com/AgenciesLeth/status/1374708535603433472?...
Live local tide: https://www.tide-forecast.com/locations/Suez-Egypt/tides/lat...
I was able to find news reports of the canal being dredged in 2015 but nothing since then.
edit: I see that they've already had one high tide opportunity which did not dislodge the vessel. From your tide chart link, I can see that the tides get progressively deeper until the end of the month, but that is a long time to be stuck there.