feat: Don't send requests to 1Inch API for unsupported tokens

[MartinquaXD]

Problem

For every user requesting a price on CoW Swap we send a request to 1Inch which the protocol has to pay for somehow which can become very expensive.

Suggested solution

According to their docs 1Inch has the /tokens endpoint which returns all tokens that can get routed through 1Inch. This list could be used as a filter to not send request for trades that would not be supported according to that list.

Acceptance criteria

• keep an up-to-date list of supported tokens in the 1Inch components responsible for price estimates
• issue an error and bail out early for requests that contain unsupported tokens (effectively not sending any request to the 1Inch API)

[github-actions]

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