fix(backup): get-latest.sh, search for both .gz and .zstd (#858)

.github/workflows/auto-codespell.yml

@@ -18,4 +18,4 @@ jobs:
         with:
           check_filenames: true
           ignore_words_list: aks,ags,startin
-          skip: "*.js,package-lock.json,*.lock,*/Font-Awesome/*,*.toml,*.svg,*assets/vendor/bootstrap*"
+          skip: "*.js,package-lock.json,*.lock,*/Font-Awesome/*,*.toml,*.svg,*assets/vendor/bootstrap*,cert-manager.crds.yaml"

backup/pvc/bin/get-latest.sh

@@ -3,8 +3,8 @@
 set -eo pipefail
 
 [[ -z "${BACKUP_DIR}" ]] && echo "Required 'BACKUP_DIR' env not set" && exit 1
-
-latest=$(find ${BACKUP_DIR} -name '*.tar.zstd' -exec basename {} \; | sort -g | tail -n 1)
+# Search for all the tar.* inside the backup dir to support the migration between gzip vs zstd
+latest=$(find ${BACKUP_DIR} -name '*.tar.*' -exec basename {} \; | sort -g | tail -n 1)
 
 if [[ "${latest}" == "" ]]; then
   echo "-1"