perf(builder): enable sparse trie sharing by default

[decofe]

Summary

• enable sparse trie sharing with the payload builder by default
• set the payload builder max task default to 1 to satisfy the sparse-trie sharing constraint
• update the CLI default test to initialize Tempo defaults and assert the new behavior

Tests

• cargo fmt --check
• cargo test -p tempo transaction_execution_wait_default_depends_on_sparse_trie_sharing

Prompted by: @joshieDo