fix(devcontainer): add missing dependencies for testing

Author: glihm

.devcontainer/Dockerfile

@@ -6,7 +6,7 @@ ARG RUST_VERSION
 
 # Install additional packages
 RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
-    && apt-get -y install --no-install-recommends protobuf-compiler libprotobuf-dev libclang-dev libzstd-dev make
+    && apt-get -y install --no-install-recommends protobuf-compiler libprotobuf-dev libclang-dev libzstd-dev make pkg-config libssl-dev
 
 RUN apt-get install -y gh libgmp3-dev software-properties-common curl git