Hello,
(posting that without having tested on my side but to try to unlock you)
Given that the sonarsource/sonarcloud-scan:2.0.0 relies on Docker Bitbucket, I believe you are facing the same problem as the one discussed here.
I suggest you try to configure your scan and import of coverage without using SonarSource/sonar cloud-scan:2.0.0 but instead call the sonar-scanner directly (get some inspiration from the post made by @Margarita_Nedzelska).
Alex