release: Prepare v1.15.0 version

[marclop]

Updates the versions of all modules for v1.15.0.

[apmmachine]

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Build stats

• Start Time: 2021-12-08T02:30:54.607+0000

• Duration: 34 min 32 sec

• Commit: ff193b8

Test stats 🧪

Test	Results
Failed	0
Passed	11976
Skipped	268
Total	12244

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