Fix more vale warnings

What does this MR do and why?

More vale fixes for group: Distribution:

• fix gitlab.FutureTense
• remove Please
• remove simply/simple
• need to -> must
• docs -> documentation
• add Gbps to the spelling exception
• add exceptions to the uppercase rules and make sure to follow https://docs.gitlab.com/ee/development/documentation/testing.html#vale-uppercase-acronym-test

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