mounter(ticdc): calculate row level checksum for timestmap by using UTC time zone (#10564)

[ti-chi-bot]

This is an automated cherry-pick of #10564

What problem does this PR solve?

Issue Number: close #10573

What is changed and how it works?

• When calculate the checksum for timestamp value, ignore the server tz, always convert it to UTC
• Simple avro, add UnsignedBigint schema, use it to encode unsigned bigint value.
• Simple avro, add Timestamp schema, use it to encode timestamp value.

Check List

Tests

• Unit test
• Integration test

Questions

Will it cause performance regression or break compatibility?

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

Release note

fix e2e checksum on the timestamp value failed since does not consider time zone

[ti-chi-bot]

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[ti-chi-bot]

@ti-chi-bot: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-cdc-integration-storage-test	e319967	link	true	/test cdc-integration-storage-test
pull-cdc-integration-mysql-test	e319967	link	true	/test cdc-integration-mysql-test
pull-engine-integration-test	e319967	link	true	/test engine-integration-test
jenkins-ticdc/verify	e319967	link	true	/test verify
pull-cdc-integration-kafka-test	e319967	link	true	/test cdc-integration-kafka-test
pull-dm-integration-test	e319967	link	true	/test dm-integration-test
pull-dm-compatibility-test	e319967	link	true	/test dm-compatibility-test

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[3AceShowHand]

close this by #10649