fix(ci): load falco image before building falco-driver-loader

Signed-off-by: Luca Guerra <luca@guerra.sh>

.github/workflows/reusable_build_docker.yaml

@@ -57,6 +57,11 @@ jobs:
             docker.io/falcosecurity/falco:${{ inputs.arch }}-${{ inputs.tag }}
           outputs: type=docker,dest=/tmp/falco-${{ inputs.arch }}.tar
 
+      # The falcosecurity/falco image is required for the driver-loader image, so we need to load it
+      - name: Load the falcosecurity/falco image
+        run: |
+          docker load --input /tmp/falco-${{ inputs.arch }}.tar
+
       - name: Build falco-driver-loader image
         uses: docker/build-push-action@v3
         with:

docker/driver-loader/Dockerfile

@@ -1,5 +1,5 @@
 ARG FALCO_IMAGE_TAG=latest
-FROM falcosecurity/falco:${FALCO_IMAGE_TAG}
+FROM docker.io/falcosecurity/falco:${FALCO_IMAGE_TAG}
 
 LABEL maintainer="cncf-falco-dev@lists.cncf.io"