fix(chaos-dashboard): ignore the first event on Reconcile that triggered by deleting action (#2698)  (#2782)

* fix conflicts
Signed-off-by: cwen0 <cwenyin0@gmail.com>

* fix conflicts
Signed-off-by: cwen0 <cwenyin0@gmail.com>

* fix ci
Signed-off-by: cwen0 <cwenyin0@gmail.com>

* fix ci
Signed-off-by: cwen0 <cwenyin0@gmail.com>
Co-authored-by: Ti Chi Robot <ti-community-prow-bot@tidb.io>