Fix some issues existing on Sound-protocol-get-tokenuri

[Kunkka0822]

• https://github.com/neume-network/strategies/pull/319#discussion_r1003114187

• https://github.com/neume-network/strategies/issues/336

• https://github.com/neume-network/strategies/issues/337

[TimDaub]

• thanks for this changeset
• a couple of new tests are failing, probably because we're not defining the gateway in the test configurations
• make sure that most/all tests are passing
• write proper commit messages

related: https://github.com/neume-network/core/issues/100

[TimDaub]

thanks