Backport Gleam 1.2.0 fixes to Nix #44

Job	Run time
rustfmt	4s
lint-build	54s
test-flake (x86_64-unknown-linux-gnu)	10m 4s
test (stable, x86_64-unknown-linux-gnu)	3m 10s
test-flake (x86_64-unknown-linux-musl)	10m 6s
test (stable, x86_64-unknown-linux-musl)	5m 41s
test-flake (aarch64-unknown-linux-musl)	10m 37s
test (stable, aarch64-unknown-linux-gnu)	1m 57s
test-flake (x86_64-apple-darwin)	14m 53s
test-wasm	1m 13s
test-flake (aarch64-apple-darwin, macos-14)	7m 23s
test (stable, aarch64-unknown-linux-musl)	2m 21s
test (stable, x86_64-apple-darwin)	6m 38s
test (stable, x86_64-pc-windows-msvc)	6m 54s
test (stable, aarch64-apple-darwin, macos-14, false, true, true)	3m 6s
test-projects	1m 31s
	1h 26m 32s

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