OpenServerless testing

Since we are testing in many clouds and environments, test setup is pretty compilcated. Details are in this document, please read it carefully...

Acceptance Test Status: 103/103

		Kind	M8S	K3S	EKS	AKS	GKE	OSH
1	Deploy	✅	✅	✅	✅	✅	✅	✅
2	SSL	N/A	✅	✅	✅	✅	✅	✅
3	Sys Redis	✅	✅	✅	✅	✅	✅	✅
4a	Sys FerretDB	✅	✅	✅	✅	✅	✅	✅
4b	Sys Postgres	✅	✅	✅	✅	✅	✅	✅
5	Sys Minio	✅	✅	✅	✅	✅	✅	✅
6	Login	✅	✅	✅	✅	✅	✅	✅
7	Statics	N/A	✅	✅	✅	✅	✅	✅
8	User Redis	✅	✅	✅	✅	✅	✅	✅
9a	User FerretDB	✅	✅	✅	✅	✅	✅	✅
9b	User Postgres	✅	✅	✅	✅	✅	✅	✅
10	User Minio	✅	✅	✅	✅	✅	✅	✅
11	Nuv Win	✅	✅	✅	✅	✅	✅	✅
12	Nuv Mac	✅	✅	✅	✅	✅	✅	✅
13	We skip this one	N/A	N/A	N/A	N/A	N/A	N/A	N/A
14	Runtimes	✅	✅	✅	✅	✅	✅	✅