ticdc add output old value config

[sdojjy]

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[Oreoxmt]

/cc @flowbehappy

[Oreoxmt]

Rest LGTM

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[qiancai]

Rest LGTM

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-04-23 08:34:33.317056332 +0000 UTC m=+76430.056959236: ☑️ agreed by Oreoxmt.
• 2024-04-29 07:51:08.337791944 +0000 UTC m=+257222.094927519: ☑️ agreed by qiancai.

[Oreoxmt]

/approve

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[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.5: #17317.