change taurus token symbol to tAI3 to ditinguish from mainnet #5991

Job	Run time
cargo-test (self-hosted, ubuntu-22.04-x86-64)	19m 12s
cargo-test (self-hosted, macos-14-arm64)	25m 33s
cargo-docs	5m 38s
cargo-fmt	22s
cargo-test (self-hosted, windows-server-2022-x86-64)	19m 16s
cargo-clippy (self-hosted, ubuntu-22.04-x86-64)	8m 9s
cargo-clippy (self-hosted, macos-14-arm64)	10m 16s
cargo-clippy (self-hosted, windows-server-2022-x86-64)	24m 31s
	1h 52m 57s

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