Improve treeshakeability of build artifacts #1073

Job	Run time
Build and run test Suite	46s
Run local tests against build artifact (20.x)	29s
Check package config with are-the-types-wrong (20.x)	9s
Test Published Artifact (Local) rr-rsc-context	41s
Test Published Artifact cra4	1m 12s
Test Published Artifact cra5	1m 11s
Test Types with TypeScript 4.7	36s
Test Published Artifact next	1m 10s
Test Types with TypeScript 4.8	35s
Test Published Artifact vite	1m 0s
Test Types with TypeScript 4.9	35s
Test Published Artifact node-standard	20s
Test Types with TypeScript 5.0	31s
Test Published Artifact node-esm	20s
Test Types with TypeScript 5.1	30s
Test Published Artifact react-native	1m 15s
Test Types with TypeScript 5.2	31s
Test Published Artifact expo	1m 15s
Test Types with TypeScript 5.3	29s
Test Types with TypeScript 5.4	33s
Test Types with TypeScript 5.5	26s
	14m 34s

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