fix(orchestrator): execute should allow no inputs

[batzionb]

The bug is that execute fails also if field inputData is passed but is empty.
This causes workflows without required inputs to fail.

Resolves FLPATH-1880

[changeset-bot]

⚠️ No Changeset found

Latest commit: 6d2d638

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[batzionb]

@gciavarrini
Please review
I didn't create a PR on main branch because of migration to rhdh-plugins
I'll create a PR there once it's in

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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