Added submodules

Author: oxisto

.github/workflows/build.yml

@@ -14,6 +14,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+        with:
+          submodules: 'true'
       - name: Build
         run: cargo build --release --verbose
       - name: Run tests
@@ -27,6 +29,8 @@ jobs:
     runs-on: macos-latest
     steps:
       - uses: actions/checkout@v4
+        with:
+          submodules: 'true'
       - name: Build
         run: cargo build --release --verbose
       - name: Run tests

README.md

@@ -9,6 +9,13 @@ This is work-in-progress.
 If you want to build `csaf-validator` on your own, please install Rust (see https://rustup.rs) and then run
 
 ```bash
+# make sure, submodules are up-to-date
+git submodule update --remote
+
+# run the tests
+cargo test
+
+# build for release
 cargo build --release
 ```