fix: remove `compiler_version` from new `Nargo.toml` #15517

Job	Run time
build-nargo	2m 20s
build-acvm-js	1m 45s
build-noirc-abi	1m 32s
build-noir-wasm	3m 41s
noirc_abi	1m 47s
ACVM JS (Node.js)	41s
ACVM JS (Browser)	1m 30s
Noir JS	1m 1s
noir_codegen	1m 25s
Example scripts	11s
Check external repo - ${{ matrix.project.repo }}	0s
noir_wasm	1m 45s
Integration Tests (Node)	2m 17s
Integration Tests (Browser)	1m 50s
End	1s
	21m 46s

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