add jwks endpoint key support to auth #250

Job	Run time
search	2s
lint (lib/metadata)	14s
lint (lib/wasmextractor)	20s
lint (lib/manifest)	20s
lint (sdk/go)	20s
lint (sdk/go/examples/graphql)	22s
lint (sdk/go/examples/simple)	22s
lint (sdk/go/examples/auth)	16s
lint (sdk/go/examples/anthropic-functions)	19s
lint (sdk/go/examples/postgresql)	16s
lint (sdk/go/examples/dgraph)	17s
lint (sdk/go/examples/embedding)	13s
lint (sdk/go/examples/vectors)	19s
lint (sdk/go/examples/collections)	16s
lint (sdk/go/examples/classification)	19s
lint (sdk/go/examples/textgeneration)	19s
lint (sdk/go/examples/http)	21s
lint (sdk/go/templates/default)	16s
lint (runtime)	28s
lint (runtime/languages/golang/testdata)	21s
	6m 0s

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