fix(deps): update module cloud.google.com/go/vertexai to v0.13.1

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

go.mod

@@ -32,7 +32,7 @@ require (
 	buf.build/gen/go/k8sgpt-ai/k8sgpt/grpc/go v1.5.1-20240807134501-ea98c104104d.1
 	buf.build/gen/go/k8sgpt-ai/k8sgpt/protocolbuffers/go v1.34.2-20240807134501-ea98c104104d.2
 	cloud.google.com/go/storage v1.43.0
-	cloud.google.com/go/vertexai v0.7.1
+	cloud.google.com/go/vertexai v0.13.1
 	github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.6.0
 	github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.3.2
 	github.com/IBM/watsonx-go v1.0.1