fix(workflows): Move setup to correct place

Signed-off-by: Cezar Craciunoiu <cezar.craciunoiu@unikraft.io>

.github/workflows/tests-stable.yaml

@@ -12,6 +12,16 @@ jobs:
         os: [ubuntu-24.04, ubuntu-22.04, macos-12, macos-13, macos-14, mac-m2-14]
     runs-on: ${{ matrix.os }}
     steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Generate Suffix
         shell: bash
         id: suffix
@@ -32,16 +42,6 @@ jobs:
         env:
           SUFFIX: ${{ steps.suffix.outputs.suffix }}
 
-      - uses: actions/checkout@v4
-        with:
-          submodules: recursive
-
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
       - uses: actions/setup-go@v5
         with:
           go-version: 1.22.3