Fix permission errors when checking SDKMAN install for different user

[AlexTMjugador]

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When SDKMAN is installed for a different user than the one Ansible is connecting with for the first time, it is likely that the user home directory permissions do not allow path traversal and/or file reading for the Ansible user:

To fix the problem, let's switch to the root user for this check, which should work in virtually every reasonable case.

[CLAassistant]

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