can't install with go1.25.1

`go1.25.1 install github.com/gnoverse/gnopls@latest` produces this error:
```
# github.com/gnoverse/gnopls/internal/tokeninternal
go/pkg/mod/github.com/gnoverse/gnopls@v0.0.0-20250912055057-eda6dfe8827d/internal/tokeninternal/tokeninternal.go:64:9:
invalid array length -delta * delta (constant -256 of type int64)
```