Ogury: Allow inventory mapping for in-app traffic.

[crepi]

We no longer require assetKey and adUnitId for in-app traffic, it can be handled with app.publisher.id with inventory mapping (like it did for web).

Doc update: prebid/prebid.github.io#6371

[github-actions]

Code coverage summary

Note:

• Prebid team doesn't anticipate tests covering code paths that might result in marshal and unmarshal errors
• Coverage summary encompasses all commits leading up to the latest one, 5d995fb

ogury

Refer here for heat map coverage report

github.com/prebid/prebid-server/v3/adapters/ogury/ogury.go:22:	Builder			100.0%
github.com/prebid/prebid-server/v3/adapters/ogury/ogury.go:26:	MakeRequests		76.3%
github.com/prebid/prebid-server/v3/adapters/ogury/ogury.go:117:	buildHeaders		50.0%
github.com/prebid/prebid-server/v3/adapters/ogury/ogury.go:130:	getMediaTypeForBid	33.3%
github.com/prebid/prebid-server/v3/adapters/ogury/ogury.go:147:	hasPublisherId		100.0%
github.com/prebid/prebid-server/v3/adapters/ogury/ogury.go:151:	hasSitePublisherId	100.0%
github.com/prebid/prebid-server/v3/adapters/ogury/ogury.go:155:	hasAppPublisherId	100.0%
github.com/prebid/prebid-server/v3/adapters/ogury/ogury.go:159:	MakeBids		70.0%
total:								(statements)		69.7%