fix deploy script

Author: yomichi

.github/workflows/deploy_docs.yml

@@ -73,7 +73,7 @@ jobs:
             mkdir -p "gh-pages/docs/${TARGET_NAME}/${lang}"
             cp -r "main/docs/sphinx/${lang}/build/html" "gh-pages/docs/${TARGET_NAME}/${lang}"
             if [ $is_tag = "YES" ]; then
-              cp "main/docs/sphinx/${lang}/build/latex/abICS_${LANG}.pdf" "gh-pages/docs/${TARGET_NAME}/${lang}/abICS.pdf"
+              cp "main/docs/sphinx/${lang}/build/latex/abICS_${lang}.pdf" "gh-pages/docs/${TARGET_NAME}/${lang}/abICS.pdf"
             fi
           done
           # apidoc