Update module aws/aws-sdk-go to v1.25.21

go.mod

@@ -4,7 +4,7 @@ go 1.13
 
 require (
 	github.com/apparentlymart/go-dump v0.0.0-20190214190832-042adf3cf4a0 // indirect
-	github.com/aws/aws-sdk-go v1.25.10
+	github.com/aws/aws-sdk-go v1.25.21
 	github.com/beevik/etree v1.1.0
 	github.com/bflad/tfproviderlint v0.5.0
 	github.com/client9/misspell v0.3.4

go.sum

@@ -36,8 +36,7 @@ github.com/armon/go-radix v1.0.0/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgI
 github.com/aws/aws-sdk-go v1.15.78/go.mod h1:E3/ieXAlvM0XWO57iftYVDLLvQ824smPP3ATZkfNZeM=
 github.com/aws/aws-sdk-go v1.19.39/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go v1.25.3/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
-github.com/aws/aws-sdk-go v1.25.10 h1:3epJfNmP6xWkOpLOdhIIj07+9UAJwvbzq8bBzyPigI4=
-github.com/aws/aws-sdk-go v1.25.10/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
+github.com/aws/aws-sdk-go v1.25.21/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/beevik/etree v1.1.0 h1:T0xke/WvNtMoCqgzPhkX2r4rjY3GDZFi+FjpRZY2Jbs=
 github.com/beevik/etree v1.1.0/go.mod h1:r8Aw8JqVegEf0w2fDnATrX9VpkMcyFeM0FhwO62wh+A=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=