Update go to 1.23 and plumbing vendoring

The vendored version of tektoncd/plumbing is from 2023 and needs
updating because of changes to the test image.

Updating plumbing brings in an update of golang as well to 1.23.

Signed-off-by: Andrea Frittoli <[email protected]>

go.mod

@@ -1,7 +1,8 @@
 module github.com/tektoncd/chains
 
-go 1.22.8
-toolchain go1.23.3
+go 1.23.2
+
+toolchain go1.23.4
 
 require (
 	cloud.google.com/go/compute/metadata v0.6.0
@@ -30,7 +31,7 @@ require (
 	github.com/spiffe/go-spiffe/v2 v2.4.0
 	github.com/stretchr/testify v1.10.0
 	github.com/tektoncd/pipeline v0.66.0
-	github.com/tektoncd/plumbing v0.0.0-20230907180608-5625252a2de1
+	github.com/tektoncd/plumbing v0.0.0-20250115133002-f515628dffea
 	go.opencensus.io v0.24.0
 	go.uber.org/zap v1.27.0
 	gocloud.dev v0.40.0
@@ -433,7 +434,7 @@ require (
 	go.uber.org/multierr v1.11.0 // indirect
 	golang.org/x/exp/typeparams v0.0.0-20241108190413-2d47ceb2692f // indirect
 	golang.org/x/mod v0.22.0 // indirect
-	golang.org/x/net v0.31.0 // indirect
+	golang.org/x/net v0.33.0 // indirect
 	golang.org/x/oauth2 v0.24.0 // indirect
 	golang.org/x/sync v0.10.0 // indirect
 	golang.org/x/sys v0.28.0 // indirect

go.sum

@@ -1310,8 +1310,8 @@ github.com/tdakkota/asciicheck v0.2.0 h1:o8jvnUANo0qXtnslk2d3nMKTFNlOnJjRrNcj0j9
 github.com/tdakkota/asciicheck v0.2.0/go.mod h1:Qb7Y9EgjCLJGup51gDHFzbI08/gbGhL/UVhYIPWG2rg=
 github.com/tektoncd/pipeline v0.66.0 h1:WLL98YEgWzblSAD2mPbpZN97tkOC50wiftaW+8+6zTY=
 github.com/tektoncd/pipeline v0.66.0/go.mod h1:V3cyfxxc7b3GLT2a13GX2mWA86qmxWhh4mOp4gfFQwQ=
-github.com/tektoncd/plumbing v0.0.0-20230907180608-5625252a2de1 h1:9paprRIBXQgcvdhGq3wKiSspXP0JIFSY52ru3sIMjKM=
-github.com/tektoncd/plumbing v0.0.0-20230907180608-5625252a2de1/go.mod h1:7eWs1XNkmReggow7ggRbRyRuHi7646B8b2XipCZ3VOw=
+github.com/tektoncd/plumbing v0.0.0-20250115133002-f515628dffea h1:z7uBS+485zM5dFs/ixc708MgIO8eCWPCRCreUQC/pzI=
+github.com/tektoncd/plumbing v0.0.0-20250115133002-f515628dffea/go.mod h1:Ks1fp1nPnhJxxT810eOkq2skeIiDuYjq3cIgpS5Gxk4=
 github.com/tenntenn/modver v1.0.1 h1:2klLppGhDgzJrScMpkj9Ujy3rXPUspSjAcev9tSEBgA=
 github.com/tenntenn/modver v1.0.1/go.mod h1:bePIyQPb7UeioSRkw3Q0XeMhYZSMx9B8ePqg6SAMGH0=
 github.com/tenntenn/text/transform v0.0.0-20200319021203-7eef512accb3 h1:f+jULpRQGxTSkNYKJ51yaw6ChIqO+Je8UqsTKN/cDag=
@@ -1606,8 +1606,8 @@ golang.org/x/net v0.11.0/go.mod h1:2L/ixqYpgIVXmeoSA/4Lu7BzTG4KIyPIryS4IsOd1oQ=
 golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
 golang.org/x/net v0.17.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE=
 golang.org/x/net v0.20.0/go.mod h1:z8BVo6PvndSri0LbOE3hAn0apkU+1YvI6E70E9jsnvY=
-golang.org/x/net v0.31.0 h1:68CPQngjLL0r2AlUKiSxtQFKvzRVbnzLwMUn5SzcLHo=
-golang.org/x/net v0.31.0/go.mod h1:P4fl1q7dY2hnZFxEk4pPSkDHF+QqjitcnDjUQyMM+pM=
+golang.org/x/net v0.33.0 h1:74SYHlV8BIgHIFC/LrYkOGIwL19eTYXQ5wc6TBuO36I=
+golang.org/x/net v0.33.0/go.mod h1:HXLR5J+9DxmrqMwG9qjGCxZ+zKXxBru04zlTvWlWuN4=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=