[RESULT][VOTE] Release 1.15.1, release candidate #1

[David Anderson <da...@apache.org>]

I am pleased to announce that we have approved this release candidate.

There are 7 approving votes, 4 of which are binding:
- Chesnay Schepler (+1 binding)
- Xingbo Huang (+1 non-binding)
- Qingsheng Ren (+1 non-binding)
- Robert Metzger (+1 binding)
- Konstantin Knauf (+1 binding)
- Jingsong Li (+0 binding)
- Danny Cranmer (+0 non-binding)

There are no disapproving votes.

Thank you for verifying the release candidate. I will now proceed to
finalize the release and announce it once everything is published.

Best regards,
David