use form-filler 1.0.1 (#4622) (#4623)

Co-authored-by: Zhe Sun <31067185+ZheSun88@users.noreply.github.com>

Author: vaadin-bot

versions.json

@@ -108,7 +108,7 @@
             "javaVersion": "15.0.1"
         },
         "flow-form-filler": {
-            "javaVersion": "1.0-SNAPSHOT"
+            "javaVersion": "1.0.1"
         },
         "form-layout": {
             "javaVersion": "{{version}}",