Fixes: compiler segfault on ARM64

The CI crashes with:
```
```

when trying to build c-green 1.6.2.

.github/install-openvas-dependencies.sh

@@ -35,7 +35,7 @@ apt-get update && apt-get install --no-install-recommends --no-install-suggests
     libhiredis-dev \
     && rm -rf /var/lib/apt/lists/*
 
-curl -L -o cgreen.tar.gz https://github.com/cgreen-devs/cgreen/archive/refs/tags/1.6.2.tar.gz -k
-tar -xzf cgreen.tar.gz && cd cgreen-1.6.2
+curl -L -o cgreen.tar.gz https://github.com/cgreen-devs/cgreen/archive/refs/tags/1.6.3.tar.gz -k
+tar -xzf cgreen.tar.gz && cd cgreen-1.6.3
 make install
 ldconfig