Create ADR for the terminology shift from "decision tree" to "decision table"

[sei-renae]

Is your feature request related to a problem? Please describe.
With 2025.9, we switched away from using the term "decision tree" to avoid confusion between the operations research use of "decision tree" and the machine learning sense.

Describe the solution you'd like
Add an ADR to https://certcc.github.io/SSVC/adr/ to document this.

[copilot-swe-agent]

The agent encountered an error and was unable to start working on this issue: This may be caused by a repository ruleset violation. See granting bypass permissions for the agent, or please contact support if the issue persists.

[sei-renae]

@copilot can you print the error code for the repository ruleset violation?