[Fizz] Set keyPath for SuspenseList

[sebmarkbage]

I missed setting the keyPath because the renderChildrenArray that this is forked from doesn't need to set a path but since this is rendered from the SuspenseList element it needs it.

[react-sizebot]

Comparing: 9c7b10e...5d37a06

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name	+/-	Base	Current	+/- gzip	Base gzip	Current gzip
oss-stable/react-dom/cjs/react-dom.production.js	=	6.68 kB	6.68 kB	+0.05%	1.83 kB	1.83 kB
oss-stable/react-dom/cjs/react-dom-client.production.js	=	529.83 kB	529.83 kB	=	93.52 kB	93.52 kB
oss-experimental/react-dom/cjs/react-dom.production.js	=	6.69 kB	6.69 kB	+0.11%	1.83 kB	1.83 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js	=	651.57 kB	651.57 kB	=	114.78 kB	114.78 kB
facebook-www/ReactDOM-prod.classic.js	=	675.81 kB	675.81 kB	=	118.87 kB	118.87 kB
facebook-www/ReactDOM-prod.modern.js	=	666.09 kB	666.09 kB	=	117.26 kB	117.26 kB

Significant size changes

Includes any change greater than 0.2%:

Expand to show

Name	+/-	Base	Current	+/- gzip	Base gzip	Current gzip
oss-experimental/react-server/cjs/react-server.production.js	=	149.56 kB	149.13 kB	=	25.75 kB	25.69 kB
oss-stable-semver/react-server/cjs/react-server.development.js	=	189.56 kB	189.01 kB	=	33.66 kB	33.60 kB
oss-stable/react-server/cjs/react-server.development.js	=	189.56 kB	189.01 kB	=	33.66 kB	33.60 kB
oss-stable-semver/react-server/cjs/react-server.production.js	=	131.28 kB	130.89 kB	=	23.01 kB	22.96 kB
oss-stable/react-server/cjs/react-server.production.js	=	131.28 kB	130.89 kB	=	23.01 kB	22.96 kB
oss-experimental/react-server/cjs/react-server.development.js	=	209.59 kB	208.93 kB	=	36.28 kB	36.20 kB

Generated by 🚫 dangerJS against 5d37a06