Fix dependabot configuration #2575
Description
Update configs must have a unique combination of 'package-ecosystem', 'directory', and 'target-branch'. Ecosystem 'gradle' has overlapping directories for target branch 'main'.
Update configs must have a unique combination of 'package-ecosystem', 'directory', and 'target-branch'. Ecosystem 'docker' has overlapping directories for target branch 'main'.
Update configs must have a unique combination of 'package-ecosystem', 'directory', and 'target-branch'. Ecosystem 'docker' has overlapping directories for target branch '3.1'.