chore(deps): update dependency go to v1.23.1

Author: renovate[bot]

providers/flagd/go.mod

@@ -2,7 +2,7 @@ module github.com/open-feature/go-sdk-contrib/providers/flagd
 
 go 1.21
 
-toolchain go1.22.3
+toolchain go1.23.1
 
 require (
 	buf.build/gen/go/open-feature/flagd/connectrpc/go v1.16.2-20240215170432-1e611e2999cc.1

providers/flipt/go.mod

@@ -2,7 +2,7 @@ module github.com/open-feature/go-sdk-contrib/providers/flipt
 
 go 1.22
 
-toolchain go1.22.4
+toolchain go1.23.1
 
 require (
 	github.com/open-feature/go-sdk v1.11.0

providers/go-feature-flag/go.mod

@@ -2,7 +2,7 @@ module github.com/open-feature/go-sdk-contrib/providers/go-feature-flag
 
 go 1.21.0
 
-toolchain go1.22.5
+toolchain go1.23.1
 
 require (
 	github.com/bluele/gcache v0.0.2