fix(gnovm): save object when refCount changed #8059

Job	Run time
setup	4s
Run Main (github-bot) / Go Build / generated	6s
Run Main (github-bot) / Go Lint / lint	28s
Run Main (github-bot) / Go Test / test	23s
Run Main (gnodev) / Go Build / generated	6s
Run Main (gnodev) / Go Lint / lint	49s
Run Main (gnodev) / Go Test / test	1m 17s
Run Main (gnofaucet) / Go Build / generated	6s
Run Main (gnofaucet) / Go Lint / lint	34s
Run Main (gnofaucet) / Go Test / test	43s
Run Main (gnogenesis) / Go Build / generated	6s
Run Main (gnogenesis) / Go Lint / lint	37s
Run Main (gnogenesis) / Go Test / test	43s
Run Main (gnohealth) / Go Build / generated	17s
Run Main (gnohealth) / Go Lint / lint	31s
Run Main (gnohealth) / Go Test / test	34s
Run Main (gnokeykc) / Go Build / generated	6s
Run Main (gnokeykc) / Go Lint / lint	38s
Run Main (gnokeykc) / Go Test / test	41s
Run Main (gnomd) / Go Build / generated	12s
Run Main (gnomd) / Go Test / test	30s
Run Main (gnomd) / Go Lint / lint	27s
Run Main (gnomigrate) / Go Build / generated	11s
Run Main (gnomigrate) / Go Lint / lint	35s
Run Main (gnomigrate) / Go Test / test	41s
	11m 25s

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