chore: Truncate flag listing in favor of docs

Description

This flag information is too long. Let's truncate it here; the output already contains examples showing the full syntax.

Files changed:

• commands/release/create/create.go
• commands/release/upload/upload.go
• docs/source/release/create.md
• docs/source/release/upload.md

Related Issues

• Related to chore: Post-merge review of UI strings (!1792 - merged) (the need was identified here)
• Related to feat(release): "release create --publish-to-cat... (!1745 - merged) (this MR is the last follow-up from it)
• Related to Publish release to catalog command (#7679 - closed) which tracked the work.

How has this been tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation
• Chore (Related to CI or Packaging to platforms)
• Test gap

Closes #7679 (closed)