cli(ticdc): fix create changefeed failure when `enable-old-value` is set to true

[lidezhu]

What problem does this PR solve?

Issue Number: close #10711

What is changed and how it works?

Report a warning and ignore the config when enable-old-value is set to true.

Check List

Tests

• Manual test (add detailed scripts or steps below)

1. create changefeed with config file which set enable-old-value to true and see whether changefeed can be created successfully and whether the warning is printed as expected.

Questions

Will it cause performance regression or break compatibility?

Do you need to update user documentation, design documentation or monitoring documentation?

Release note

None

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[lidezhu]

/label needs-cherry-pick-release-7.5

[codecov[bot]]

Codecov Report

Merging #10731 (23ac6ec) into master (f9ca8a2) will increase coverage by 0.0302%. Report is 2 commits behind head on master. The diff coverage is 100.0000%.

Additional details and impacted files

Components	Coverage Δ
cdc	61.9475% <100.0000%> (+0.0243%)	:arrow_up:
dm	51.2273% <ø> (+0.0404%)	:arrow_up:
engine	63.3582% <ø> (+0.0141%)	:arrow_up:

Flag	Coverage Δ
unit	57.5714% <100.0000%> (+0.0302%)	:arrow_up:

Flags with carried forward coverage won't be shown. Click here to find out more.

@@               Coverage Diff                @@
##             master     #10731        +/-   ##
================================================
+ Coverage   57.5412%   57.5714%   +0.0302%     
================================================
  Files           850        851         +1     
  Lines        126770     126799        +29     
================================================
+ Hits          72945      73000        +55     
+ Misses        48384      48363        -21     
+ Partials       5441       5436         -5     

[lidezhu]

/test cdc-integration-kafka-test

[flowbehappy]

The same issue has been address by this issue https://github.com/pingcap/tiflow/issues/10916. Closing this PR.