Improve how geolocation DB files are downloaded/updated #1601

Job	Run time
static-analysis (8.3, cs)	39s
static-analysis (8.3, stan)	38s
static-analysis (8.3, openapi:validate)	14s
api-tests / tests (8.3)	1m 16s
cli-tests / tests (8.3)	37s
api-tests / tests (8.4)	1m 17s
cli-tests / tests (8.4)	46s
unit-tests / tests (8.3)	29s
unit-tests / tests (8.4)	28s
db-tests (maria) / db-tests (8.3)	26s
db-tests (maria) / db-tests (8.4)	25s
db-tests (ms) / db-tests (8.3)	50s
db-tests (ms) / db-tests (8.4)	1m 2s
db-tests (mysql) / db-tests (8.3)	32s
db-tests (postgres) / db-tests (8.3)	25s
db-tests (mysql) / db-tests (8.4)	37s
db-tests (postgres) / db-tests (8.4)	22s
db-tests (sqlite:ci) / db-tests (8.3)	39s
db-tests (sqlite:ci) / db-tests (8.4)	19s
upload-coverage (8.3)	23s
delete-artifacts	4s
	12m 28s

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