Avoid warning 56 blowup for dict patterns #10117

Job	Run time
test-devcontainer	17m 34s
build-compiler (windows-2025, 5.3.0, true, win32-x64, x86_64-pc-windows-gnu, .exe, release)	19m 10s
build-compiler (macos-15-intel, 5.3.0, true, darwin-x64, x86_64-apple-darwin, release)	40m 43s
build-compiler (ubuntu-24.04, ocaml-variants.5.0.0+options,ocaml-option-static, linux-x64, x86_64...	5m 24s
build-compiler (macos-15, 5.3.0, true, darwin-arm64, aarch64-apple-darwin, release)	7m 12s
build-compiler (ubuntu-24.04-arm, ocaml-variants.5.3.0+options,ocaml-option-static, true, true, t...	5m 51s
build-compiler (ubuntu-24.04, ocaml-variants.5.3.0+options,ocaml-option-static, true, true, linux...	6m 0s
api-docs	2m 40s
pkg-pr-new	55s
test-installation-npm (ubuntu-24.04)	13s
test-integration-rewatch (ubuntu-24.04)	3m 52s
test-installation-npm (macos-15-intel)	32s
test-integration-rewatch (macos-15-intel)	9m 25s
test-integration-rewatch (windows-2025)	6m 43s
test-integration-rewatch (ubuntu-24.04-arm)	2m 54s
test-installation-pnpm (ubuntu-24.04)	18s
test-installation-npm (ubuntu-24.04-arm)	15s
test-installation-pnpm (windows-2025)	1m 18s
test-integration-rewatch (macos-15)	3m 40s
test-installation-npm (macos-15)	18s
test-installation-npm (windows-2025)	1m 24s
test-installation-pnpm (macos-15)	17s
test-installation-pnpm (ubuntu-24.04-arm)	22s
test-installation-pnpm (macos-15-intel)	31s
publish	-1s
	2h 17m 30s

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