Add changelog for 0.79.7 (#54224) #1

Job	Run time
prepare_hermes_workspace	0s
prebuild_apple_dependencies	0s
set_release_type	0s
build_hermesc_apple	0s
test_js	0s
build_android	0s
lint	0s
build_hermesc_windows	0s
build_hermesc_linux	0s
run_fantom_tests	0s
build_apple_slices_hermes	0s
test_e2e_android_rntester	0s
build_hermes_macos	0s
prebuild_react_native_core	-1s
test_ios_rntester_ruby_3_2_0	-1s
test_ios_helloworld	0s
test_ios_rntester	-1s
test_ios_helloworld_with_ruby_3_2_0	0s
test_e2e_android_templateapp	0s
test_e2e_ios_rntester	0s
test_android_helloworld	0s
build_npm_package	0s
test_e2e_ios_templateapp	0s
rerun-failed-jobs	7s
	4s

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