fix(axis): fix last tick doesn't show for single data

[Ovilia]

Brief Information

This pull request is in the type of:

• bug fixing
• new feature
• others

What does this PR do?

Show last tick for single data

Fixed issues

#18453

Details

Before: What was the problem?

No last tick when data length is 1.

After: How does it behave after the fixing?

Has last tick when data length is 1.

Document Info

One of the following should be checked.

• This PR doesn't relate to document changes
• The document should be updated later
• The document changes have been made in apache/echarts-doc#xxx

Misc

ZRender Changes

• This PR depends on ZRender changes (ecomfe/zrender#xxx).

Related test cases or examples to use the new APIs

• The first test case in axis-extrema.html

I've run visual tests for all cases and saw no problems.

Others

Merging options

• Please squash the commits into a single one when merging.

Other information

[echarts-bot]

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[echarts-bot]

Congratulations! Your PR has been merged. Thanks for your contribution! 👍