fix: install debootstrap and e2fsprogs in image build workflow

Author: richiemcilroy

.github/workflows/build-images.yml

@@ -41,8 +41,8 @@ jobs:
 
       - uses: Swatinem/rust-cache@v2
 
-      - name: Install protobuf compiler
-        run: sudo apt-get update && sudo apt-get install -y protobuf-compiler musl-tools
+      - name: Install build dependencies
+        run: sudo apt-get update && sudo apt-get install -y protobuf-compiler musl-tools debootstrap e2fsprogs
 
       - name: Build guest agent (static musl binary)
         run: cargo build --release --package sandchest-agent --target x86_64-unknown-linux-musl