Try using Sway example app ABI as a part of CI

[ra0x3]

• We have two parts to our codegen (1) using GraphQL schema (2) using JSON-format of Sway contract ABI
• Our #[indexer] macro uses codegen part number 2 (Sway ABI)
• We only have really simple contract ABIs in our tests (fuel-indexer-test, simple-wasm)
• It was suggested that if we want "real world" ABIs, we should ensure our tests work for Sway example app ABI
• This could be a part of our trybuild tests potentially
• We essentially just want to make sure our #[indexer] macros successfully compile in a number of "real world" situations
• This has some priority because this would help us detect breakage before grantees (who write "real world" contracts) do