Bump Fleece to get fix for noisy signal handler

[borrrden]

• Fix warn release wording and triggering mechanism

[github-actions]

This is a release branch and commits are restricted.

Please confirm this PR is one of the following:

• A response to a customer ask
• A change per our security policy
• A non-functional change (e.g. changes needed for building an older version)
• A bug fix for a x.y.0 release
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[cbl-bot]

Code Coverage Results:

Type	Percentage
branches	64.45
functions	77.38
instantiations	71.0
lines	75.87
regions	72.11