Add autovacuum_scores metric

[nadashaban11]

Description

Added metric for pg_stat_autovacuum_scores to report per-table autovacuum details based on the new pg_stat_autovacuum_scores view produced by postgresql 19

Fixes #1398

• SQL query to fetch the scores retrieved from pg_stat_autovacuum_scores` view
• Converted boolean fields (do_vacuum, do_analyze, for_wraparound) to integers 1/0 to match other metrics
• Applied tag naming (tag_schema, tag_table_name, tag_table_full_name).
• Registered the new metric in the presets (exhaustive, full, standard, debug).
  I honestly do not sure about proper presets to add to, but I suggested the above based on the provided description on each preset.

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Checklist

• Code compiles and existing tests pass locally.
• New or updated tests are included where applicable.
• Documentation is updated where applicable.