fix(gnovm): save object when refCount changed #7948

Job	Run time
setup	6s
Run Main (github-bot) / Go Build / generated	9s
Run Main (github-bot) / Go Lint / lint	20s
Run Main (github-bot) / Go Test / test	24s
Run Main (gnodev) / Go Lint / lint	43s
Run Main (gnodev) / Go Build / generated	11s
Run Main (gnodev) / Go Test / test	1m 17s
Run Main (gnofaucet) / Go Build / generated	10s
Run Main (gnofaucet) / Go Lint / lint	36s
Run Main (gnofaucet) / Go Test / test	37s
Run Main (gnogenesis) / Go Build / generated	14s
Run Main (gnogenesis) / Go Lint / lint	45s
Run Main (gnogenesis) / Go Test / test	42s
Run Main (gnohealth) / Go Build / generated	11s
Run Main (gnohealth) / Go Lint / lint	37s
Run Main (gnohealth) / Go Test / test	40s
Run Main (gnokeykc) / Go Lint / lint	40s
Run Main (gnomigrate) / Go Build / generated	9s
Run Main (gnomigrate) / Go Lint / lint	32s
Run Main (gnomigrate) / Go Test / test	37s
Run Main (gnokeykc) / Go Build / generated	10s
Run Main (gnokeykc) / Go Test / test	41s
Run Main (gnomd) / Go Build / generated	13s
Run Main (gnomd) / Go Lint / lint	24s
Run Main (gnomd) / Go Test / test	31s
	11m 39s

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