feat: attestation test on azure and default dcap

```
❯ docker run -i --rm --privileged  --device /dev/sgx_enclave --net host \
  matterlabsrobot/teepot-self-attestation-test-sgx-azure:latest \
  | base64 -d --ignore-garbage \
  | docker run -i --rm --net host matterlabsrobot/verify-attestation-sgx-azure:latest
```

Signed-off-by: Harald Hoyer <harald@matterlabs.dev>

packages/container-self-attestation-test-sgx-dcap/default.nix

@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: Apache-2.0
+# Copyright (c) 2024 Matter Labs
+{ pkgs
+, vat
+, nixsgx
+, curl
+, teepot
+, bash
+, coreutils
+, openssl
+}:
+let manifest = ./tee-self-attestation-test.manifest.toml;
+in pkgs.dockerTools.buildLayeredImage {
+  name = "teepot-self-attestation-test-sgx-dcap";
+  tag = "base";
+
+  config.Entrypoint = [ "/bin/sh" "-c" ];
+
+  contents = pkgs.buildEnv {
+    name = "image-root";
+
+    paths = with pkgs.dockerTools; with nixsgx;[
+      bash
+      coreutils
+      openssl.out
+      curl.out
+      teepot.teepot.tee_self_attestation_test
+      gramine
+      restart-aesmd
+      sgx-dcap.quote_verify
+      sgx-dcap.default_qpl
+      sgx-psw
+      usrBinEnv
+      binSh
+      caCertificates
+      fakeNss
+    ];
+    pathsToLink = [ "/bin" "/lib" "/etc" "/share" "/app" ];
+    postBuild = ''
+      mkdir -p $out/{app,etc}
+      mkdir -p $out/app/{.dcap-qcnl,.az-dcap-client}
+      mkdir -p $out/var/run
+      mkdir -p $out/${nixsgx.sgx-psw.out}/aesm/
+      ln -s ${curl.out}/lib/libcurl.so $out/${nixsgx.sgx-psw.out}/aesm/
+      cp ${manifest} $out/app/tee-self-attestation-test.manifest.toml
+      printf "precedence ::ffff:0:0/96  100\n" > $out/etc/gai.conf
+    '';
+  };
+}