Update dependency @blueprintjs/icons to v6 - autoclosed #3237

Job	Run time
Get packages within the repository	31s
Repo Wide Tasks	3m 12s
@sourceacademy/modules-lib library (ubuntu-latest)	30s
@sourceacademy/modules-lib library (windows-latest)	1m 19s
robot_simulation Bundle	37s
arcade_2d Bundle	43s
unity_academy Bundle	29s
painter Bundle	36s
curve Bundle	34s
physics_2d Bundle	37s
plotly Bundle	48s
sound Bundle	38s
rune Bundle	38s
csg Bundle	36s
Game Tab	29s
UnityAcademy Tab	33s
Csg Tab	37s
Rune Tab	37s
Unittest Tab	32s
MarkSweep Tab	30s
AugmentedReality Tab	42s
ArcadeTwod Tab	31s
SoundMatrix Tab	30s
StereoSound Tab	39s
CopyGc Tab	32s
Plotly Tab	44s
Repl Tab	35s
Curve Tab	39s
Pixnflix Tab	33s
Physics2D Tab	37s
Sound Tab	42s
Repeat Tab	33s
Nbody Tab	31s
Painter Tab	38s
RobotSimulation Tab	43s
Docs Server Tasks	0s
Dev Server Tasks	0s
Verify all tests pass and build success	0s
	24m 15s

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