[website] Add panfish logo on Pulsar user list (#9112)
[website] Add panfish logo on Pulsar user list (#9112)

### Motivation

Panfish is a Pulsar adopter now.

### Modifications

Add their logo on Pulsar user list.
massakam/pulsar,yahoo/pulsar,merlimat/pulsar,merlimat/pulsar,massakam/pulsar,massakam/pulsar,yahoo/pulsar,massakam/pulsar,yahoo/pulsar,merlimat/pulsar,massakam/pulsar,massakam/pulsar,merlimat/pulsar,yahoo/pulsar,merlimat/pulsar,yahoo/pulsar,yahoo/pulsar,merlimat/pulsar