Random content decoding failure

### Prerequisites

- [x] I have written a descriptive issue title
- [x] I have searched existing issues to ensure the bug has not already been reported

### Fastify version

5.2.1

### Plugin version

8.0.2

### Node.js version

20

### Operating system

Windows

### Operating system version (i.e. 20.04, 11.3, 10)

Server running on Linux, clients connecting from Chrome on Windows 11

### Description

Over the past year I have been seeing a random bug with Fastify compress, where after some amount of requests (entirely random) I eventually get a `(failed)net::ERR_CONTENT_DECODING_FAILED`. I am not able to repeat this consistently, but many of my users receive this issue quite alot, even within 5 minutes of using the software.

Is there any part of Fastify compress that could be causing this bug? It does not happen when I disable compression.
Fastify and fastify-compress are updated to the latest versions. Requests that fail usually appear to be around 50 Bytes according to Chromes network monitor.

### Link to code that reproduces the bug

Not able to consistently reproduce as it is random after some amount of requests.

### Expected Behavior

All requests go through successfully and `(failed)net::ERR_CONTENT_DECODING_FAILED` does not occur.