chore(deps): update dependency go to v1.22.4

Author: renovate[bot]

core/go.mod

@@ -2,7 +2,7 @@ module github.com/open-feature/flagd/core
 
 go 1.21
 
-toolchain go1.21.4
+toolchain go1.22.4
 
 require (
 	buf.build/gen/go/open-feature/flagd/grpc/go v1.3.0-20240215170432-1e611e2999cc.3

flagd-proxy/go.mod

@@ -2,7 +2,7 @@ module github.com/open-feature/flagd/flagd-proxy
 
 go 1.21
 
-toolchain go1.21.4
+toolchain go1.22.4
 
 require (
 	buf.build/gen/go/open-feature/flagd/grpc/go v1.3.0-20240215170432-1e611e2999cc.3

flagd/go.mod

@@ -2,7 +2,7 @@ module github.com/open-feature/flagd/flagd
 
 go 1.21
 
-toolchain go1.21.4
+toolchain go1.22.4
 
 require (
 	buf.build/gen/go/open-feature/flagd/connectrpc/go v1.16.0-20240215170432-1e611e2999cc.1