v1.9.1

Changelog

• b17e81b Merge pull request #420 from icon-project/fix/balance-query
• 3d2ea01 Merge branch 'main' into fix/balance-query
• 67392ae Merge branch 'fix/balance-query' of github.com:icon-project/centralized-relay into fix/balance-query
• c3b8207 rf: return N/A denom for error
• 7b80a31 Merge pull request #423 from icon-project/fix/sui_event_query
• 185e683 Merge pull request #424 from icon-project/fix/sol_event_query
• 140d004 fix: start event query from recent xcall tx signature by default
• 3424b70 Merge branch 'main' into fix/balance-query
• 5fcd40d revert: roundoff to nearest value
• 6ea865e fix: start querying from latest xcall tx digest by default
• a0e323c fix: balances queries fails when one fails
• 38111aa rf(doc): update readme