ci: Check for the PDK output inside the tar command.

Signed-off-by: Tim 'mithro' Ansell <tansell@google.com>

.github/capture.sh

diff --git a/.github/capture.sh b/.github/capture.sh
index 7f849bf..810b537 100644
--- a/.github/capture.sh
+++ b/.github/capture.sh
@@ -13,12 +13,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-SKY130_DIR="$(pwd)/pdks/pdk/sky130A"
-if ! [[ -d $SKY130_DIR ]]; then
-    echo "Missing $SKY130_DIR"
-    exit -1
-fi
-
 mkdir -p ${GITHUB_WORKSPACE}/output/
 
 # Copy build log.
@@ -35,6 +29,12 @@
 # Try to create a deterministic tar file
 # https://reproducible-builds.org/docs/archives/
 (
+	SKY130_DIR="$(pwd)/pdks/pdk/sky130A"
+	if ! [[ -d $SKY130_DIR ]]; then
+	    echo "Missing $SKY130_DIR"
+	    exit -1
+	fi
+
 	cd ${SKY130_DIR}
 	tar \
 		--create \