Add possibility to override the conn type for Druid

[olegmayko]

Minor fix, which allows to use the schema which are specified in theschema rather than http as default. In the same time it doesn't changethe logic as any conn_type can be selected. Intuitevely it's expectedthat anything specified in schema field will actually take precedencein the building the desired url.

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[olegmayko]

similar issue #27581

[dirrao]

Nice. Can you add the test case for the same?

[olegmayko]

Hi, can you please validate it, I'd like to remove the step from building docker image, which replace the upstream file with the fixed one. Thank you

[amoghrajesh]

Can we define "http" as a constant that denoted the default connection type?

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 5 days if no further activity occurs. Thank you for your contributions.

[olegmayko]

hi, can we reopen it, ready to fix it. thx