🐛 default to go 1.25

Signed-off-by: Dylan <dymurray@redhat.com>

Author: dymurray

.github/workflows/build-nightly-images.yaml

@@ -72,8 +72,10 @@ jobs:
         shell: bash
         run: |
           GO_MOD_DIR="${{ matrix.image.go_mod_directory || '.' }}"
-          GO_VERSION=$(grep '^go ' "${GO_MOD_DIR}/go.mod" | awk '{print $2}')
-          echo "go_version=${GO_VERSION}" >> $GITHUB_OUTPUT
+          if [ -f "${GO_MOD_DIR}/go.mod" ]; then
+            GO_VERSION=$(grep '^go ' "${GO_MOD_DIR}/go.mod" | awk '{print $2}')
+          fi
+          echo "go_version=${GO_VERSION:-1.25}" >> $GITHUB_OUTPUT
 
       - name: Setup golang
         uses: actions/setup-go@v6