Add JFR flags #36

Job	Run time
Select platforms	1s
linux-x64 / build (debug)	1m 42s
docs / build (debug)	1m 51s
linux-x64 / build (release)	1m 42s
linux-x64-hs-minimal / build (debug)	1m 37s
linux-x64-hs-nopch / build (debug)	1m 39s
linux-x64-hs-optimized / build (debug)	1m 38s
linux-x64-hs-zero / build (debug)	1m 39s
linux-x86 / build (debug)	2m 5s
macos-aarch64 / build (debug)	1m 40s
linux-x86 / build (release)	2m 7s
macos-aarch64 / build (release)	1m 35s
macos-x64 / build (debug)	3m 46s
windows-aarch64 / build (debug)	3m 26s
macos-x64 / build (release)	3m 58s
windows-aarch64 / build (release)	3m 36s
windows-x64 / build (debug)	3m 30s
windows-x64 / build (release)	3m 26s
macos-aarch64	0s
linux-x64	0s
linux-cross-compile	0s
linux-x86	0s
windows-x64	0s
macos-x64	0s
Remove bundle artifacts	5s
	41m 3s

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