feat: add kernel / kmod version validation

Author: RoyalOughtness

.github/workflows/build.yml

@@ -58,7 +58,21 @@ jobs:
           BASE_IMAGE=$(yq '.base-image' ./recipes/${{ matrix.recipe }})
           echo "BASE_IMAGE_NAME=$(echo $BASE_IMAGE | sed 's/.*\/.*\///')" >> $GITHUB_ENV
 
-
+      - name: Validate kernel and kmod versions
+        uses: Wandalen/[email protected]
+        with:
+          attempt_limit: 3
+          attempt_delay: 15000
+          command: |
+            set -eo pipefail
+            linux=$(skopeo inspect docker://ghcr.io/ublue-os/main-kernel:40 | jq -r '.Labels["ostree.linux"]')
+            AKMODS_KERNEL_VERSION=$(skopeo inspect docker://ghcr.io/ublue-os/akmods:main-40 | jq -r '.Labels["ostree.linux"]')
+            if [[ "${linux}" != "${AKMODS_KERNEL_VERSION}" ]]; then
+              echo "Kernel Versions do not match between AKMODS and Cached-Kernel."
+              exit 1
+            fi
+            echo "KERNEL_VERSION=$linux" >> $GITHUB_ENV
+            
       - name: Build wayblue
         uses: blue-build/[email protected]
         with: