[Build] Update management module version

[gaoran10]

Modifications

Update package org.apache.pulsar:pulsar-package-management from 2.7.0-SNAPSHOT version to 2.8.0-SNAPSHOT.

Does this pull request potentially affect one of the following parts:

If yes was chosen, please highlight the changes

• Dependencies (does it add or upgrade a dependency): (no)
• The public API: (no)
• The schema: (no)
• The default values of configurations: (no)
• The wire protocol: (no)
• The rest endpoints: (no)
• The admin cli options: (no)
• Anything that affects deployment: (no)

[codelipenghui]

/pulsarbot run-failure-checks

[codelipenghui]

/pulsarbot run-failure-checks

[gaoran10]

/pulsarbot run-failure-checks

[eolivelli]

LGTM

[eolivelli]

The MACOs test is failing with:

Run apache/pulsar-test-infra/diff-only@master
Error: Container action is only supported on Linux

IMHO we can ignore it and merge the patch

[codelipenghui]

@eolivelli Yes, we are still trying to find a solution to verify the build process on different os. So it's not a required CI test. I have merged this PR, and I will close #8698 first.