[BUG] VPPeleaseDateTime exclusion missing from run_backup.py

[ChrisM-24]

Describe the bug
When attempting to start a backup with the exclusion 'VPPeleaseDateTime', the following error is given:

IntuneCD-startbackup: error: argument -e/--exclude: invalid choice: 'VPPeleaseDateTime'

To Reproduce
Start a backup process that includes VPPeleaseDateTime in the exclusions

Expected behavior
Backup runs and excludes the releaseDateTime that was added in PR#252

Run type (please complete the following information):

• Mode: 1
• Client: Pipeline
• Version 2.6.0

Additional context
Currently able to workaround by patching 'run_backup.py' during pipeline to add VPPeleaseDateTime to the allowed exclusions.

[almenscorner]

Fix added in 2.6.1b1, try this version and let me know how it works out!