remove dependabot (#274) #84

Job	Run time
ci-lint	16s
build-calibnet	4m 16s
build-2k	4m 25s
build-debug	4m 49s
build-forest	4m 15s
build-mainnet	4m 21s
gen-check	5m 20s
gofmt	21s
lint	3m 13s
mod-tidy-check	37s
setup-params	3s
test (test-itest-curio, ./itests/curio_test.go)	4m 33s
test (test-all, `go list ./... \| grep -v curio/itests`)	2m 45s
test (test-itest-harmonyDB, ./itests/harmonydb_test.go)	2m 28s
test (test-itest-alertnow, ./itests/alertnow_test.go)	1m 32s
	43m 14s

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