#AI COMMIT# Add Dependabot ignore rules for Flink shims modules

[aiceflower]

Dependabot has raised PRs (#5426, #5427) that upgrade Flink dependencies from 1.16.2 to 1.20.4 inside flink-shims-1.16.2. This is incorrect because shims modules are version-specific compatibility layers — the module name must match the supported engine version. Upgrading the dependency in-place would break the shims contract and likely cause compilation or runtime failures across 4 major Flink versions.

The correct approach to support a newer Flink version is to create a new shims module (e.g. flink-shims-1.20.4) following the existing pattern, rather than modifying the existing flink-shims-1.16.2 module.

What is the purpose of the change

EngineConn-Core defines the the abstractions and interfaces of the EngineConn core functions.
The Engine Service in Linkis 0.x is refactored, EngineConn will handle the engine connection
and session management.

Related issues/PRs

Related issues: close #590 close #591
Related pr:#591

Brief change log

• Define the core abstraction and interfaces of the EngineConn Factory;
• Define the core abstraction and interfaces of Executor Manager.

Checklist

• I have read the Contributing Guidelines on pull requests.
• I have explained the need for this PR and the problem it solves
• I have explained the changes or the new features added to this PR
• I have added tests corresponding to this change
• I have updated the documentation to reflect this change
• I have verified that this change is backward compatible (If not, please discuss on the Linkis mailing list first)
• If this is a code change: I have written unit tests to fully verify the new behavior.

[casionone]

LGTM.