Chore: update otel v1.37.0 to v1.38.0 (#110985)

pkg/codegen/go.mod

@@ -43,6 +43,7 @@ require (
 	github.com/rogpeppe/go-internal v1.14.1 // indirect
 	github.com/santhosh-tekuri/jsonschema/v5 v5.3.1 // indirect
 	github.com/sergi/go-diff v1.3.2-0.20230802210424-5b0b94c5c0d3 // indirect
+	github.com/stretchr/testify v1.11.1 // indirect
 	github.com/ugorji/go/codec v1.2.11 // indirect
 	github.com/xlab/treeprint v1.2.0 // indirect
 	github.com/yalue/merged_fs v1.3.0 // indirect