Latest boto3 library incompatible with barman

[mnencia]

Boto3 1.36.0 changed the way S3 integrity is checked, and it is no longer compatible with the old code.

That's the error it generates:

An error occurred (MissingContentLength) when calling the PutObject operation

As a workaround, you can pin the version 1.35.99.

[martinmarques]

Thanks Marco for pointing this out. We'll apply the workaround now and work on supporting the new version of Boto

[martinmarques]

We'll be delivering the workaround in 3.13 which we plan on releasing next month. Proper support for Boto 1.36+ will come later