Add support for versionTag binding for business rule tasks

[jfriedenstab]

Problem you would like to solve

As a Camunda 8 user, I'd like to use versionTag binding for business rule tasks so that I can specify a specific version of the target decision to be called.

Proposed solution

• The new type "version tag" (value: versionTag) is added to the "Binding" dropdown in the "Called decision" section of the properties panel.
• If "version tag" is selected, an additional input field "Version tag" is displayed.
• Version tag is removed when another binding type is selected
• The provided value is stored in the versionTag attribute of the zeebe:calledDecision extension element:

  <zeebe:calledDecision decisionId="my-decision" bindingType="versionTag" versionTag="v1" resultVariable="foo" />

Alternatives considered

None

Additional context

• part of [EPIC] Support version tag binding for linked resources camunda#19812
• relates to Add support for setting a version tag for a DMN decision #4454