fixix(tinybird): Align MV columns and fix downstream pipe queries

[NagyVikt]

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Deployment was failing due to mismatches between materialized view
pipe outputs and target datasource schemas, as well as downstream
pipes referencing columns that were no longer being materialized.

• Aligned columns in dub_click_events_pipe final node with the schema
  of dub_click_events_mv.datasource. Added missing fields like
  region, latitude, longitude, engine, ua, identity_hash,
  and referer_url.
• Aligned columns in dub_lead_events_pipe final node with the schema
  of dub_lead_events_mv.datasource. Initially added missing fields,
  then removed fields (bot, metadata, engine_version, etc.) that
  were not actually present in the target MV schema according to later
  deployment errors.
• Aligned columns in dub_sale_events_pipe final node with the schema
  of dub_sale_events_mv.datasource. Added missing fields like
  region, latitude, longitude, engine, ua, and referer_url.
• Removed references to the metadata column from NODE lead_events
  and NODE sale_events within v2_customer_events.pipe, as this
  column was no longer present in dub_lead_events_mv or
  dub_sale_events_mv.
• Corrected the UNION ALL structure in NODE endpoint of
  v2_customer_events.pipe to ensure all branches selected the
  same number and order of columns after the removal of metadata.

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