[Debugger] Add support for restart requests #8834

Job	Run time
Build Ballerina Lang	7m 42s
Build Ballerina Distribution	24m 4s
Build Stdlib Level (2)	13m 7s
Build Stdlib Level (3)	9m 48s
Build Stdlib Level (1)	4m 37s
Build Stdlib Level (4)	17m 5s
Build Stdlib Level (5)	24m 2s
Build Stdlib Level (6)	24m 3s
Build Stdlib Level (7)	24m 1s
Build Stdlib Level (8)	24m 27s
Build Stdlib Level (9)	4m 36s
	2h 57m 32s

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