Add alert rules to seldon-core based on the KF093 spec #665

Job	Run time
Publish Charm / Generate the Charm Matrix	2s
Run Tests / Lint Check	14s
Run Tests / Get integration environments	5s
Run Tests / Unit Test	21s
Run Tests / Check libraries / Check libraries	23s
Run Tests / Check libraries / Lint	11s
Publish Charm / Publish Charm (./)	18m 31s
Run Tests / Integration Test (build and deploy) (seldon-servers-integration -- -k tensorflow)	29m 2s
Run Tests / Integration Test (build and deploy) (seldon-servers-integration -- -k sklearn-v2)	30m 56s
Run Tests / Integration Test (build and deploy) (seldon-servers-integration -- -k sklearn-v1)	29m 22s
Run Tests / Integration Test (build and deploy) (seldon-servers-integration -- -k mlflowserver-v1)	31m 34s
Run Tests / Integration Test (build and deploy) (seldon-servers-integration -- -k xgboost-v1)	29m 43s
Run Tests / Integration Test (build and deploy) (seldon-servers-integration -- -k mlflowserver-v2)	29m 20s
Run Tests / Integration Test (build and deploy) (seldon-servers-integration -- -k huggingface)	31m 19s
Run Tests / Integration Test (build and deploy) (seldon-servers-integration -- -k xgboost-v2)	31m 24s
Run Tests / Integration Test (build and deploy) (seldon-servers-integration -- -k tf-serving)	30m 35s
Run Tests / Integration Test (build and deploy) (charm-integration --)	34m 56s
	5h 27m 58s

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