SSL Certificate expired for interop-relay.cloudflare.mediaoverquic.com

The SSL/TLS certificate for `https://interop-relay.cloudflare.mediaoverquic.com/` has expired. The verification time indicates it expired approximately 20 days ago (around May 13, 2026). As a result, the QUIC cryptographic handshake fails for all incoming connections.

**Relevant Log Output:**

```text
WARN moq_native::client: QUIC connection failed err=the cryptographic handshake failed: error 45: invalid peer certificate: certificate expired: verification time 1780424241 (UNIX), but certificate is not valid after 1778695193 (1729048 seconds ago)

```

**Impact:**
All connections to the interop relay currently fail during the handshake.

Start by checking the interop-relay.cloudflare.mediaoverquic.com endpoint and the certificate details shown in the issue's QUIC handshake log. Determine where the relay certificate is managed and renew or replace it so the certificate is valid; done means incoming connections complete the cryptographic handshake successfully.

Written by the indexing model from the issue text.