CI: change date format from ISO-8601 to old one with points for relea…

…se title, so it can be interpreted as semver.

.github/workflows/release.yml

@@ -16,7 +16,7 @@ jobs:
       - name: Date
         id: date
         run: |
-          CUR_DATE=`date +"%Y-%m-%d"`
+          CUR_DATE=`date +"%Y.%m.%d"`
           echo "value=$CUR_DATE" >> "$GITHUB_OUTPUT"
 
       - name: Title