fix(gnovm): save object when refCount changed #7498

Job	Run time
setup	3s
Run Main (github-bot) / Go Build / generated	10s
Run Main (github-bot) / Go Linter / lint	31s
Run Main (github-bot) / Go Test / test	34s
Run Main (gnodev) / Go Build / generated	7s
Run Main (gnodev) / Go Linter / lint	49s
Run Main (gnodev) / Go Test / test	1m 14s
Run Main (gnofaucet) / Go Build / generated	5s
Run Main (gnofaucet) / Go Linter / lint	28s
Run Main (gnofaucet) / Go Test / test	37s
Run Main (gnogenesis) / Go Build / generated	6s
Run Main (gnogenesis) / Go Test / test	40s
Run Main (gnogenesis) / Go Linter / lint	37s
Run Main (gnohealth) / Go Build / generated	11s
Run Main (gnohealth) / Go Linter / lint	31s
Run Main (gnohealth) / Go Test / test	34s
Run Main (gnokeykc) / Go Build / generated	6s
Run Main (gnokeykc) / Go Test / test	38s
Run Main (gnokeykc) / Go Linter / lint	34s
Run Main (gnomd) / Go Build / generated	7s
Run Main (gnomd) / Go Linter / lint	30s
Run Main (gnomd) / Go Test / test	31s
Run Main (gnomigrate) / Go Build / generated	10s
Run Main (gnomigrate) / Go Linter / lint	36s
Run Main (gnomigrate) / Go Test / test	36s
	11m 5s

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