Fix bad substituation error

Author: stefanmeschke

.github/workflows/template_release_version.yml

@@ -56,7 +56,8 @@ jobs:
             OLD_TAG_NAME=`gh release list -R ${{ github.repository }} --limit 100 --exclude-drafts --exclude-pre-releases --json tagName --jq '[.[] | select(.tagName | startswith("${TAG_PREFIX}") and endswith("${TAG_SUFFIX}"))] | .[0].tagName'`
 
             # remove prefix and suffix
-            OLD_VERSION=${${OLD_TAG_NAME#${TAG_PREFIX}}%${TAG_SUFFIX}}
+            OLD_VERSION=${OLD_TAG_NAME#${TAG_PREFIX}}
+            OLD_VERSION=${OLD_VERSION%${TAG_SUFFIX}}
 
             PARTS=(${OLD_VERSION//./ })
             COUNTER=${PARTS[2]}