fix: create release branch release-1.0.3#17977

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linliu-code wants to merge 4 commits intoapache:release-1.0.2from

linliu-code:release-1.0.3-prep

Commits on Jan 22, 2026

feat: Support TIMELINE_SERVER_BASED markers for flink writer (#14202)

cshuo
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fix: Fix output type extracting for key selector in flink stream read (#14065)

cshuo
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linliu-code
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fix: fix the issue where lsm writer could not write again after failure (#17472)

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linliu-code
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fix: fix get empty completion time in corner case (#14379)

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linliu-code
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