Add dict literal syntax #3828

Job	Run time
static-binaries-linux (ubuntu-latest)	1m 28s
build-rewatch (macos-13)	1m 15s
static-binaries-linux (buildjet-2vcpu-ubuntu-2204-arm)	1m 54s
build-rewatch (macos-14)	48s
build-rewatch (ubuntu-latest)	1m 9s
build-rewatch (buildjet-2vcpu-ubuntu-2204-arm)	2m 3s
build-rewatch (windows-latest)	2m 45s
upload-linux-arm64-binaries	23s
build (macos-13, 5.1.1)	9m 51s
build (macos-14, 5.1.1)	5m 34s
build (ubuntu-latest, 5.1.1)	5m 24s
build (windows-latest, 5.1.1)	10m 47s
package	46s
installationTest (macos-13)	24s
installationTest (macos-14)	14s
installationTest (ubuntu-latest)	18s
installationTest (buildjet-2vcpu-ubuntu-2204-arm)	28s
installationTest (windows-latest)	59s
publish	0s
	46m 30s

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