CI/CD - retry screenshot if image size is too small

Author: gkv311

.github/workflows/screenshot.sh

@@ -9,4 +9,12 @@ anAppPid=$!
 
 rm -f "$anImg"
 scrot -d $aDelay -F "$anImg"
+
+anImgSize=$(wc -c <"$anImg")
+if [ $actualsize -lt 10000 ]; then
+  # retry one more time
+  mv -f "$anImg" "back-first-${anImg}"
+  scrot -d 1 -F "$anImg"
+fi
+
 kill $anAppPid