chore: update Go toolchain to 1.23.6 #363

Job	Run time
search	4s
build (sdk/go/examples/simple)	43s
build (sdk/go/examples/embedding)	48s
build (sdk/go/examples/textgeneration)	51s
build (sdk/go/examples/http)	45s
build (sdk/go/examples/postgresql)	47s
build (sdk/go/examples/collections)	44s
build (sdk/go/examples/neo4j)	48s
build (sdk/go/examples/classification)	46s
build (sdk/go/examples/graphql)	46s
build (sdk/go/examples/anthropic-functions)	49s
build (sdk/go/examples/vectors)	41s
build (sdk/go/examples/dgraph)	46s
build (sdk/go/examples/auth)	47s
build (sdk/go/examples/time)	45s
build (sdk/go/examples/mysql)	46s
build (sdk/go/tools/modus-go-build)	24s
	12m 0s

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