chore: temporarily use Go 1.23 toolchain for SDK #369

Job	Run time
search	3s
build (sdk/go/tools/modus-go-build)	28s
build (sdk/go/examples/postgresql)	39s
build (sdk/go/examples/neo4j)	41s
build (sdk/go/examples/mysql)	41s
build (sdk/go/examples/time)	40s
build (sdk/go/examples/dgraph)	39s
build (sdk/go/examples/textgeneration)	35s
build (sdk/go/examples/http)	38s
build (sdk/go/examples/vectors)	40s
build (sdk/go/examples/graphql)	37s
build (sdk/go/examples/simple)	38s
build (sdk/go/examples/anthropic-functions)	37s
build (sdk/go/examples/collections)	41s
build (sdk/go/examples/embedding)	37s
build (sdk/go/examples/auth)	36s
build (sdk/go/examples/classification)	41s
	10m 11s

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