docs: rename "Interrupt tool calls" to "Cancel tool calls" in AI Agent event handling

[Copilot]

Description

Renamed "Interrupt tool calls" to "Cancel tool calls" throughout AI Agent event handling documentation to avoid confusion with BPMN's "interrupt" terminology.

Changes:

• Updated heading from #### Interrupt tool calls to #### Cancel tool calls
• Updated anchor from #interrupt-tool-calls to #cancel-tool-calls
• Updated all references to use "Cancel tool calls" terminology
• Added bold formatting to "Cancel tool calls" when referenced in prose for better readability
• Changed "the interruption" to "the cancellation" for terminology consistency
• Applied to both current docs and version 8.8

Aligns with naming change in camunda/connectors#6278.

When should this change go live?

• This is a bug fix, security concern, or something that needs urgent release support. (add bug or support label)
• This is already available but undocumented and should be released within a week. (add available & undocumented label)
• This is on a specific schedule and the assignee will coordinate a release with the Documentation team. (create draft PR and/or add hold label)
• This is part of a scheduled alpha or minor. (add alpha or minor label)
• There is no urgency with this change (add low prio label)

PR Checklist

• The commit history of this PR is cleaned up, using {type}(scope): {description} commit message(s)

• My changes are for an upcoming minor release and are in the /docs directory (version 8.9).

• My changes are for an already released minor and are in a /versioned_docs directory.

• I added a DRI, team, or delegate as a reviewer for technical accuracy and grammar/style:

  • Engineering team review
  • Technical writer review via @camunda/tech-writers unless working with an embedded writer.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Rephrase AI Agent event handling from interrupt to cancel</issue_title>
<issue_description>Rephrase the naming changes as part of camunda/connectors#6277 (implemented in camunda/connectors#6278) to change the naming of the "Interrupt tool calls" option in the AI Agent event handling to "Cancel tool calls" in order to not clash with the BPMN term "interrupt". </issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Rephrase AI Agent event handling from interrupt to cancel #7866

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[maff]

@afgambin this is the follow-up to renaming the event handling option in modeler from "Interrupt tool calls" to "Cancel tool calls". As I retroactively patched this into the 8.8 templates it's also changed for 8.8 (will be available for 8.8 and 8.9 after the release next week).

[afgambin]

@maff lgtm!