Update spack_build.yml with checkout in right place

.github/workflows/spack_build.yml

@@ -24,13 +24,6 @@ jobs:
 
     name: Build Custom Base Image
     steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          # Once we move submodule deps into spack, we can do some more builds
-          # Also need to change build script to use spack from base image
-          submodules: true
-
       # No GHCR base image with skopeo, so this will do...
       - name: "Set up skopeo"
         uses: warjiang/[email protected]
@@ -117,6 +110,13 @@ jobs:
     name: Build HiOp with Spack
 
     steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          # Once we move submodule deps into spack, we can do some more builds
+          # Also need to change build script to use spack from base image
+          submodules: true
+
       - name: Clone Spack
         run: |
           # TODO: Move back to spack@develop once patch in in develop