fix(grainfmt): Correct formatting of nested constraints #9811

Job	Run time
Build and test on windows-latest / Dependencies / Create dependencies cache	10s
Build and test on macos-latest / Dependencies / Create dependencies cache	5s
Build and test on ubuntu-latest / Dependencies / Create dependencies cache	4s
Build and test on ubuntu-latest / (native) Build and test / (native) Build and test	5m 32s
Build and test on ubuntu-latest / (js) Build and test / (js) Build and test	12m 44s
Build and test on macos-latest / (native) Build and test / (native) Build and test	5m 25s
Build and test on macos-latest / (js) Build and test / (js) Build and test	32m 0s
Build and test on windows-latest / (native) Build and test / (native) Build and test	17m 51s
Build and test on windows-latest / (js) Build and test / (js) Build and test	19m 39s
Test pkg binaries / Test pkg binary on ubuntu-latest	56s
Test pkg binaries / Test pkg binary on macos-latest	1m 10s
Test pkg binaries / Test pkg binary on windows-latest	38s
	1h 36m 14s

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