ddl: set lossy DDL change source for column worker

[Rustin170506]

What problem does this PR solve?

Issue Number: close #43227

Problem Summary:

What is changed and how it works?

set lossy DDL change source for column worker
See more at the issue.

Check List

Tests

• Unit test

Side effects

None

Documentation

None

Release note

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• lichunzhu
• zimulala

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[ti-chi-bot]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[Rustin170506]

Test it locally:

1. Build new version TiDB and TiKV
2. Start tidb cluster tiup playground nightly --tiflash 0 --kv.binpath /Users/hi-rustin/vsc/tikv/target/debug/tikv-server --db.binpath /Users/hi-rustin/GolandProjects/tidb/bin/tidb-server
3. Start TiCDC cluster and create blackhole changefeed: ./cdc cli changefeed create --sink-uri="blackhole://" -c test
4. Check the log try to find BlackHoleSink: WriteEvents
5. Only find one record: [2023/04/21 15:46:01.839 +08:00] [INFO] [black_hole_dml_sink.go:38] ["BlackHoleSink: WriteEvents"] [row="{\"start-ts\":440942765231308803,\"commit-ts\":440942765231308804,\"row-id\":1,\"table\":{\"db-name\":\"test\",\"tbl-name\":\"example\",\"tbl-id\":88,\"is-partition\":false},\"column-infos\":[{\"ID\":1,\"IsPKHandle\":true,\"VirtualGenCol\":false,\"Ft\":{\"Tp\":3,\"Flag\":4099,\"Flen\":11,\"Decimal\":0,\"Charset\":\"binary\",\"Collate\":\"binary\",\"Elems\":null,\"ElemsIsBinaryLit\":null,\"Array\":false}},{\"ID\":2,\"IsPKHandle\":false,\"VirtualGenCol\":false,\"Ft\":{\"Tp\":3,\"Flag\":0,\"Flen\":11,\"Decimal\":0,\"Charset\":\"binary\",\"Collate\":\"binary\",\"Elems\":null,\"ElemsIsBinaryLit\":null,\"Array\":false}}],\"columns\":[{\"name\":\"id\",\"type\":3,\"charset\":\"binary\",\"flag\":11,\"value\":1,\"default\":null},{\"name\":\"b\",\"type\":3,\"charset\":\"binary\",\"flag\":65,\"value\":1,\"default\":null}],\"pre-columns\":null}"]

[Rustin170506]

Self check

[zimulala]

LGTM

[lichunzhu]

LGTM

[lichunzhu]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 8a6dc90

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-6.5: #43548.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.1: #43549.