etc: use buildx for builds

Signed-off-by: Vitor Bandeira <[email protected]>

Author: vvbandeira

etc/DependencyInstaller.sh

@@ -128,6 +128,7 @@ _installCI() {
 
     apt-get -y update
     apt-get -y install --no-install-recommends \
+        docker-buildx \
         docker-ce \
         docker-ce-cli \
         containerd.io

etc/DockerHelper.sh

@@ -81,7 +81,7 @@ _setup() {
 
 _create() {
     echo "Create docker image ${imagePath} using ${file}"
-    ${DOCKER_CMD} build \
+    ${DOCKER_CMD} buildx build \
         --file "${file}" \
         --tag "${imagePath}" \
         ${buildArgs} \