fix(deps): update github.com/tmc/langchaingo digest to 4afed6d (#508)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

go.mod

@@ -22,7 +22,7 @@ require (
 	github.com/rs/zerolog v1.29.1
 	github.com/sashabaranov/go-openai v1.9.5
 	github.com/swaggo/swag v1.16.1
-	github.com/tmc/langchaingo v0.0.0-20230530193922-fb062652f841
+	github.com/tmc/langchaingo v0.0.0-20230605114752-4afed6d7be4a
 	github.com/urfave/cli/v2 v2.25.5
 	github.com/valyala/fasthttp v1.47.0
 	gopkg.in/yaml.v2 v2.4.0

go.sum

@@ -220,6 +220,8 @@ github.com/tinylib/msgp v1.1.8 h1:FCXC1xanKO4I8plpHGH2P7koL/RzZs12l/+r7vakfm0=
 github.com/tinylib/msgp v1.1.8/go.mod h1:qkpG+2ldGg4xRFmx+jfTvZPxfGFhi64BcnL9vkCm/Tw=
 github.com/tmc/langchaingo v0.0.0-20230530193922-fb062652f841 h1:IVlfKPZzq3W1G+CkhZgN5VjmHnAeB3YqEvxyNPPCZXY=
 github.com/tmc/langchaingo v0.0.0-20230530193922-fb062652f841/go.mod h1:6l1WoyqVDwkv7cFlY3gfcTv8yVowVyuutKv8PGlQCWI=
+github.com/tmc/langchaingo v0.0.0-20230605114752-4afed6d7be4a h1:YtKJTKbM3qu60+ZxLtyeCl0RvdG7LKbyF8TT7nzV6Gg=
+github.com/tmc/langchaingo v0.0.0-20230605114752-4afed6d7be4a/go.mod h1:6l1WoyqVDwkv7cFlY3gfcTv8yVowVyuutKv8PGlQCWI=
 github.com/urfave/cli/v2 v2.25.3 h1:VJkt6wvEBOoSjPFQvOkv6iWIrsJyCrKGtCtxXWwmGeY=
 github.com/urfave/cli/v2 v2.25.3/go.mod h1:GHupkWPMM0M/sj1a2b4wUrWBPzazNrIjouW6fmdJLxc=
 github.com/urfave/cli/v2 v2.25.5 h1:d0NIAyhh5shGscroL7ek/Ya9QYQE0KNabJgiUinIQkc=