Update sonarqube Docker tag

This MR contains the following updates:

Package	Type	Update	Change
sonarqube	ironbank-docker	minor	9.3.0-enterprise -> 9.4.0-enterprise
sonarqube		minor	9.3.0-enterprise -> 9.4.0-enterprise
sonarqube		minor	9.3-enterprise -> 9.4-enterprise
sonarqube	stage	minor	9.3.0-enterprise -> 9.4.0-enterprise

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