Bulk select Patterns screenshots need to be updated to PF6

[tlabaj]

Describe the enhancement or change
Bulk select patterns page screenshots are still PF5, they should be updated to PF6.
https://www.patternfly.org/patterns/bulk-selection.

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Jira Issue: PF-3438

[edonehoo]

Closing in favor of the org issue patternfly/patternfly-org#4871