Add 'latest' tag push in case of release

Author: paolino

scripts/buildkite/release/push-to-dockerhub.sh

@@ -23,6 +23,8 @@ main_build=$(curl -H "Authorization: Bearer $BUILDKITE_API_TOKEN" \
 
 mkdir -p artifacts
 
+repo="cardano-foundation/cardano-wallet"
+
 artifact() {
     local artifact_name=$1
     # shellcheck disable=SC2155
@@ -33,10 +35,19 @@ artifact() {
     curl -H "Authorization: Bearer $BUILDKITE_API_TOKEN" -L \
         -o "artifacts/$artifact_name" \
         "$artifact_value"
-    local image_name="cardanofoundation/cardano-wallet:$TAG"
     docker login -u cfhal -p "$DOCKER_HUB_TOKEN"
     docker load -i "artifacts/$artifact_name"
-    docker push "$image_name"
+    local image_name="$repo:$TAG"
+    if [ "$RELEASE" == "false" ]; then
+        local loaded_image_name="$repo:$NEW_GIT_TAG"
+        docker tag "$loaded_image_name" "$image_name"
+        docker push "$image_name"
+    else
+        local latest_image_name="$repo:latest"
+        docker push "$image_name"
+        docker tag "$image_name" "$latest_image_name"
+        docker push "$latest_image_name"
+    fi
 }
 
 artifact "cardano-wallet-$NEW_GIT_TAG-docker-image.tgz"