Update to Gleam 1.4.0 #88

Job	Run time
lint-build	59s
rustfmt	6s
test-flake (x86_64-unknown-linux-gnu)	4m 0s
test (stable, x86_64-unknown-linux-gnu)	3m 0s
test-flake (x86_64-unknown-linux-musl)	3m 58s
test-wasm	1m 12s
test (stable, x86_64-unknown-linux-musl)	5m 21s
test-flake (aarch64-unknown-linux-gnu)	3m 57s
test (stable, aarch64-unknown-linux-gnu)	2m 1s
test-flake (aarch64-unknown-linux-musl)	4m 7s
test (stable, aarch64-unknown-linux-musl)	2m 15s
test-flake (x86_64-apple-darwin)	5m 45s
test-flake (aarch64-apple-darwin, macos-14)	3m 47s
test (stable, x86_64-apple-darwin)	5m 34s
test (stable, x86_64-pc-windows-msvc)	5m 6s
test (stable, aarch64-apple-darwin, macos-latest, false, true, true)	3m 29s
test-projects	1m 51s
	56m 28s

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