fix copypasta

Author: nicktrn

.github/actions/get-image-tag/action.yml

@@ -31,7 +31,7 @@ runs:
             sha=$(echo ${{ github.sha }} | head -c7)
             ts=$(date +%s)
             tag=${env}-${sha}-${ts}
-          if [[ "${{ github.ref_name }}" == re2-*-* ]]; then
+          elif [[ "${{ github.ref_name }}" == re2-*-* ]]; then
             env=$(echo ${{ github.ref_name }} | cut -d- -f2)
             sha=$(echo ${{ github.sha }} | head -c7)
             ts=$(date +%s)