[Yamato] Auto version and preview promotion of 10.x.x stream [skip ci]#815

Merged

sophiaaar merged 6 commits intomasterfrom

yamato/auto-preview-promotion

Jun 10, 2020

Commits on Jun 10, 2020

set up auto version for master
Sophia
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create "promote all - nightly" job and edit dependencies
Sophia
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fix dependencies for promote_all
Sophia
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Revert "fix dependencies for promote_all"
Sophia
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add nightly trigger to preview promote job
Sophia
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Update pb_promote.py
Sophia
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