go.mod: upgrade rpcplugin to v0.3.1

This fixes a bug where the plugin would panic if asked to terminate early
by Terraform, such as if Terraform encounters an upstream error.

go.mod

@@ -19,7 +19,7 @@ require (
 	github.com/mitchellh/go-wordwrap v0.0.0-20150314170334-ad45545899c7 // indirect
 	github.com/vmihailenco/msgpack/v5 v5.3.5 // indirect
 	github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect
-	go.rpcplugin.org/rpcplugin v0.3.0 // indirect
+	go.rpcplugin.org/rpcplugin v0.3.1 // indirect
 	golang.org/x/mod v0.8.0 // indirect
 	golang.org/x/net v0.20.0 // indirect
 	golang.org/x/sys v0.16.0 // indirect

go.sum

@@ -4,6 +4,8 @@ github.com/agext/levenshtein v1.2.1 h1:QmvMAjj2aEICytGiWzmxoE0x2KZvE0fvmqMOfy2tj
 github.com/agext/levenshtein v1.2.1/go.mod h1:JEDfjyjHDjOF/1e4FlBE/PkbqA9OfWu2ki2W0IB5558=
 github.com/apparentlymart/go-ctxenv v1.0.0 h1:bsRTyED+PEcifljxBd/WhXRk/BNhgCigGYGZ0pVP4lM=
 github.com/apparentlymart/go-ctxenv v1.0.0/go.mod h1:Fxo441RKBr/C5JmbNRwdMSAUXs7k8M9ndNHBShdNCE4=
+github.com/apparentlymart/go-dump v0.0.0-20180507223929-23540a00eaa3 h1:ZSTrOEhiM5J5RFxEaFvMZVEAM1KvT1YzbEOwB2EAGjA=
+github.com/apparentlymart/go-dump v0.0.0-20180507223929-23540a00eaa3/go.mod h1:oL81AME2rN47vu18xqj1S1jPIPuN7afo62yKTNn3XMM=
 github.com/apparentlymart/go-shquot v0.0.1 h1:MGV8lwxF4zw75lN7e0MGs7o6AFYn7L6AZaExUpLh0Mo=
 github.com/apparentlymart/go-shquot v0.0.1/go.mod h1:lw58XsE5IgUXZ9h0cxnypdx31p9mPFIVEQ9P3c7MlrU=
 github.com/apparentlymart/go-textseg/v15 v15.0.0 h1:uYvfpb3DyLSCGWnctWKGj857c6ew1u1fNQOlOtuGxQY=
@@ -37,6 +39,8 @@ github.com/mitchellh/go-wordwrap v0.0.0-20150314170334-ad45545899c7 h1:DpOJ2HYzC
 github.com/mitchellh/go-wordwrap v0.0.0-20150314170334-ad45545899c7/go.mod h1:ZXFpozHsX6DPmq2I0TCekCxypsnAUbP2oI0UX1GXzOo=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/sergi/go-diff v1.0.0 h1:Kpca3qRNrduNnOQeazBd0ysaKrUJiIuISHxogkT9RPQ=
+github.com/sergi/go-diff v1.0.0/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAmXWZgo=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
@@ -48,8 +52,8 @@ github.com/zclconf/go-cty v1.14.3 h1:1JXy1XroaGrzZuG6X9dt7HL6s9AwbY+l4UNL8o5B6ho
 github.com/zclconf/go-cty v1.14.3/go.mod h1:VvMs5i0vgZdhYawQNq5kePSpLAoz8u1xvZgrPIxfnZE=
 github.com/zclconf/go-cty-debug v0.0.0-20240209213017-b8d9e32151be h1:JoF5rruXECi+VEbdJ6xanklyLnz+TVCZ0FcmvSQq/Go=
 github.com/zclconf/go-cty-debug v0.0.0-20240209213017-b8d9e32151be/go.mod h1:CmBdvvj3nqzfzJ6nTCIwDTPZ56aVGvDrmztiO5g3qrM=
-go.rpcplugin.org/rpcplugin v0.3.0 h1:vVNTbrHCJUqSk4TUX6cM9R47Dib/o2CEjt/h+VVTkjU=
-go.rpcplugin.org/rpcplugin v0.3.0/go.mod h1:f5O2vlY4U6xkCVylHp7MQDUW2n5KdVA/sqyaYLtXRrA=
+go.rpcplugin.org/rpcplugin v0.3.1 h1:o12wFQu70tVc1nEI4N9GrogHEIQ70hWO92ks0XTPAsQ=
+go.rpcplugin.org/rpcplugin v0.3.1/go.mod h1:f5O2vlY4U6xkCVylHp7MQDUW2n5KdVA/sqyaYLtXRrA=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/mod v0.8.0 h1:LUYupSeNrTNCGzR/hVBk2NHZO4hXcVaW1k4Qx7rjPx8=
 golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=