Update docs to recommend UUIDv4 explicitly

[rmloveland]

Fixes DOC-9482

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[github-actions]

Files changed:

• src/current/_includes/v25.3/faq/auto-generate-unique-ids.md:
• src/current/v25.3/sql-faqs.md
• src/current/v25.3/uuid.md
• src/current/v25.3/create-table.md
• src/current/v25.3/performance-best-practices-overview.md
• src/current/_includes/v25.3/faq/differences-between-numberings.md:
• src/current/v25.3/sql-faqs.md
• src/current/v25.3/alter-table.md
• src/current/v25.3/create-sequence.md
• src/current/v25.3/hash-sharded-indexes.md
• src/current/v25.3/liquibase.md
• src/current/v25.3/movr-flask-application.md
• src/current/v25.3/performance-best-practices-overview.md
• src/current/v25.3/row-level-security.md
• src/current/v25.3/schema-design-table.md
• src/current/v25.3/serial.md
• src/current/v25.3/understand-hotspots.md
• src/current/v25.3/uuid.md

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