CI: bump cirros to 0.6.1

Change-Id: I80fb1469ae4ff8d38198e495690496fcb5eadc18

tools/init-runonce

@@ -19,7 +19,7 @@ fi
 # to be created.
 
 ARCH=$(uname -m)
-CIRROS_RELEASE=0.6.0
+CIRROS_RELEASE=0.6.1
 IMAGE_PATH=/opt/cache/files/
 IMAGE_URL=https://github.com/cirros-dev/cirros/releases/download/${CIRROS_RELEASE}/
 IMAGE=cirros-${CIRROS_RELEASE}-${ARCH}-disk.img
@@ -75,7 +75,7 @@ echo Checking for locally available cirros image.
 if ! [ -f "${IMAGE_PATH}/${IMAGE}" ]; then
     IMAGE_PATH='./'
     if ! [ -f "${IMAGE_PATH}/${IMAGE}" ]; then
-        echo None found, downloading cirros image.
+        echo "None found, downloading cirros image (version $CIRROS_RELEASE)."
         curl --fail -L -o ${IMAGE_PATH}/${IMAGE} ${IMAGE_URL}/${IMAGE}
     fi
 else