Changes

ticdc: Update Prow configuration to include YAML files in skip_if_only_changed and add 'all' to test triggers (#3896)

This pull request updates Prow job configurations for TiCDC to improve
test execution and skipping logic.

The main goals of these changes are:

* **Enhance skipping logic:** More accurately skip presubmit jobs when
only configuration files are changed, preventing unnecessary test runs.
* **Expand trigger commands:** Allow the `all` command to trigger the
`pull-cdc-mysql-integration-light-next-gen` job for more flexibility in
CI workflows.

Here's a breakdown of the changes:

* **Modified `skip_if_only_changed` regex:**
* In `latest-presubmits-next-gen.yaml`, the regex now includes `.yaml`
files, meaning jobs will be skipped if only YAML configuration files are
modified.
* In `latest-presubmits.yaml`, the regex is updated similarly to include
`.yaml` files for more accurate skipping.
* **Updated `trigger` command:**
* In `latest-presubmits-next-gen.yaml`, the
`pull-cdc-mysql-integration-light-next-gen` job's trigger now includes
`all`, allowing it to be run with the `"/test all"` command.

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Signed-off-by: tenfyzhong <tenfy@tenfy.cn>
 (commit: 7be6fd5)