Bump go-stellar-sdk to CAP-71-only XDR; drop CAP-83 fixture

go-stellar-sdk@130456cc9b69 is regenerated from stellar-xdr@68fa1ac (post-
stellar/stellar-xdr#303 ungate of CAP_0071) with XDR_FEATURES cleared, so
the bind no longer carries the CAP-0083 STELLAR_VALUE_EMPTY_TX_SET path —
matching the p27 release scope (CAP-0071 only; CAP-0083 deferred).

The SDK bump also transitively picks up stellar/go-xdr#32, which raises
DecodeDefaultMaxDepth 250 → 1500, so the CAP-71 240-deep delegate fixture
(test-lcms/InvokeHostFunctionTests/a7a45d93c64cf3d9.xdr) now ingests
without ErrMaxDecodingDepth.

The HerderTests fixture (network_externalizes_empty-tx-set_on_missing_value)
no longer decodes under CAP-71-only XDR (StellarValueType 2 is gone) and is
removed.

Author: sisuresh

go.mod

@@ -36,7 +36,7 @@ require (
 	github.com/spf13/cobra v1.7.0
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/spf13/viper v1.17.0
-	github.com/stellar/go-xdr v0.0.0-20260423131911-a87d4d0789c3 // indirect
+	github.com/stellar/go-xdr v0.0.0-20260529210834-0bf8f4956364 // indirect
 	github.com/stellar/throttled v2.2.3-0.20190823235211-89d75816f59d+incompatible
 	github.com/stretchr/testify v1.11.1
 	github.com/xdrpp/goxdr v0.1.1 // indirect
@@ -171,4 +171,4 @@ require (
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 
-replace github.com/stellar/go-stellar-sdk => github.com/sisuresh/go v0.0.0-20260528013211-3852f45c84a4
+replace github.com/stellar/go-stellar-sdk => github.com/sisuresh/go v0.0.0-20260603233216-130456cc9b69

go.sum

@@ -413,8 +413,8 @@ github.com/shurcooL/httpfs v0.0.0-20230704072500-f1e31cf0ba5c h1:aqg5Vm5dwtvL+Yg
 github.com/shurcooL/httpfs v0.0.0-20230704072500-f1e31cf0ba5c/go.mod h1:owqhoLW1qZoYLZzLnBw+QkPP9WZnjlSWihhxAJC1+/M=
 github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
 github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
-github.com/sisuresh/go v0.0.0-20260528013211-3852f45c84a4 h1:oyw4CzmrSxS0jnBSRPvEf1snw3WnP/bJtKNDx8SWM6w=
-github.com/sisuresh/go v0.0.0-20260528013211-3852f45c84a4/go.mod h1:wH+L/1lnWZYUJQei6HF0QhIvs7chSHOapizIJDp66SE=
+github.com/sisuresh/go v0.0.0-20260603233216-130456cc9b69 h1:6kRM4dbiYMUoDinHaPitvG/pap6jDzkLcv4gMEQ29Fo=
+github.com/sisuresh/go v0.0.0-20260603233216-130456cc9b69/go.mod h1:IkcqcrE9UQi7n/1y+MxKB+7qzdjG1T2kGOD7Ss8dqjw=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d h1:zE9ykElWQ6/NYmHa3jpm/yHnI4xSofP+UP6SpjHcSeM=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
 github.com/smartystreets/goconvey v1.6.4 h1:fv0U8FUIMPNf1L9lnHLvLhgicrIVChEkdzIKYqbNC9s=
@@ -431,8 +431,8 @@ github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/spf13/viper v1.17.0 h1:I5txKw7MJasPL/BrfkbA0Jyo/oELqVmux4pR/UxOMfI=
 github.com/spf13/viper v1.17.0/go.mod h1:BmMMMLQXSbcHK6KAOiFLz0l5JHrU89OdIRHvsk0+yVI=
-github.com/stellar/go-xdr v0.0.0-20260423131911-a87d4d0789c3 h1:/NnsQpfVYPFr5Xm/V7EOblI8P05zewwkJLOlLItsW7U=
-github.com/stellar/go-xdr v0.0.0-20260423131911-a87d4d0789c3/go.mod h1:If+U9Z1W5xU97VrOgJandQT+2dN7/iOpkCrxBJEyF80=
+github.com/stellar/go-xdr v0.0.0-20260529210834-0bf8f4956364 h1:gOKrfuWdZ92LFlv0TAwgZ7OsWKeBsOMDlGLyFgduI1w=
+github.com/stellar/go-xdr v0.0.0-20260529210834-0bf8f4956364/go.mod h1:If+U9Z1W5xU97VrOgJandQT+2dN7/iOpkCrxBJEyF80=
 github.com/stellar/throttled v2.2.3-0.20190823235211-89d75816f59d+incompatible h1:jMXXAcz6xTarGDQ4VtVbtERogcmDQw4RaE85Cr9CgoQ=
 github.com/stellar/throttled v2.2.3-0.20190823235211-89d75816f59d+incompatible/go.mod h1:7CJ23pXirXBJq45DqvO6clzTEGM/l1SfKrgrzLry8b4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=