Slight changes to RC schedule for 2.10.1 and 2.10.2

[Rick Elrod]

Hi all,

You might recall an email I sent to the list on August 27th about RCs
for minor versions.

There has been a slight change to the schedule, though most of it
remains unchanged.

This Monday (September 7th), we will be releasing another ansible-base
2.10.1 RC, instead of 2.10.1 final. This is due to a number of changes
that went into stable-2.10 between the RC and GA rather than the branch
being considered frozen. For this release cycle only, there will be a
shortened period between 2.10.1 (GA) and 2.10.2rc1, of 2 weeks instead
of the usual 3.

The updated schedule is as follows:

- 7 September 2020:
ansible-base 2.10.1rc3

- 14 September 2020:
ansible-base 2.10.1

- 28 September 2020:
ansible-base 2.10.2rc1
ansible 2.9.14rc1
ansible 2.8.16rc1

- 5 October 2020:
ansible-base 2.10.2
ansible 2.9.14
ansible 2.8.16

Rick