[improve][ci] docbot comment only for open PRs (#17709)
[improve][ci] docbot comment only for open PRs (#17709)

Signed-off-by: tison <b6e578468b915016335bf268450a4dbbe07c0284@gmail.com>

Signed-off-by: tison <b6e578468b915016335bf268450a4dbbe07c0284@gmail.com>
massakam/pulsar,merlimat/pulsar,merlimat/pulsar,massakam/pulsar,merlimat/pulsar,merlimat/pulsar,merlimat/pulsar,massakam/pulsar,massakam/pulsar,merlimat/pulsar,massakam/pulsar,massakam/pulsar