Traverse upwards for single context projects #8508

Job	Run time
build-compiler (ubuntu-24.04-arm, ocaml-variants.5.3.0+options,ocaml-option-static, true, true, t...	1m 36s
build-compiler (windows-2022, 5.3.0, true, win32-x64, x86_64-pc-windows-gnu)	3m 21s
build-compiler (macos-14, 5.3.0, true, darwin-arm64, aarch64-apple-darwin)	1m 58s
build-compiler (ubuntu-24.04, ocaml-variants.5.3.0+options,ocaml-option-static, true, true, linux...	1m 40s
build-compiler (macos-13, 5.3.0, true, darwin-x64, x86_64-apple-darwin)	4m 1s
build-compiler (ubuntu-24.04, ocaml-variants.4.14.2+options,ocaml-option-static, linux-x64, x86_6...	1m 43s
pkg-pr-new	0s
api-docs	0s
test-integration-rewatch	0s
test-installation-npm	0s
test-installation-pnpm	0s
publish	0s
	14m 19s

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