ci(Docker): Disable all plugin preinstalls to prevent clashes (#391) #1253

Job	Run time
Build and test / Frontend build	2m 25s
Build and test / E2E tests	4m 25s
Package / Upload to GCS	9s
Deploy (dev) / Deploy to dev wave	21s
Deploy (ops) / Deploy to ops wave	35s
Deploy (dev) / debug	2s
Deploy (ops) / debug	2s
	7m 59s

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