chore!: Allow lowercase field type #6094

Job	Run time
build-nargo	2m 21s
build-nargo	2m 21s
build-nargo	2m 21s
build-noirc-abi	1m 55s
build-noirc-abi	1m 55s
build-noirc-abi	1m 55s
build-acvm-js	1m 23s
build-acvm-js	1m 23s
build-acvm-js	1m 23s
build-noir-wasm	3m 49s
build-noir-wasm	3m 49s
build-noir-wasm	3m 49s
ACVM JS (Browser)	2m 1s
ACVM JS (Browser)	1m 12s
ACVM JS (Browser)	1m 33s
ACVM JS (Node.js)	35s
ACVM JS (Node.js)	35s
ACVM JS (Node.js)	35s
noir-js-backend-barretenberg	41s
noir-js-backend-barretenberg	41s
noir-js-backend-barretenberg	41s
noirc_abi	46s
noirc_abi	46s
noirc_abi	46s
Noir JS	1m 38s
Noir JS	1m 38s
Noir JS	1m 38s
noir_codegen	1m 6s
noir_codegen	1m 6s
noir_codegen	1m 6s
noir_wasm	1m 14s
noir_wasm	1m 14s
noir_wasm	1m 14s
Integration Tests (Node)	3m 33s
Integration Tests (Node)	3m 33s
Integration Tests (Node)	3m 33s
Integration Tests (Browser)	5m 20s
Integration Tests (Browser)	5m 20s
Integration Tests (Browser)	5m 20s
End	1s
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	1h 17m 52s

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