Fixed definitions of nuke outputs for > 1 access blocks

What's Changed

• nuke_account and rebuild_after_nuke_accounts will accept multiple access blocks. Account will only be added to the lists if access.level of any of the development access blocks is equal to sandbox
• If multiple sandbox access blocks are defined for a development account, with multiple values for "nuke" exclude will take priority.
• blocklist_nuke_account refactored for consistency.

Relevant Story: ministryofjustice/modernisation-platform#2400

Additionally

• Bump github/codeql-action from 2.1.35 to 2.1.36 by @dependabot in #26
• Refactoring nuke-related local definitions to account for one, many or no defined access blocks. by @julialawrence in #27

Full Changelog: v5.0.0...v5.0.1