vault: make retry helper resilient

services/vault/scripts/vault_k8s_auth_configure.sh

@@ -5,8 +5,10 @@ log() { echo "[vault-k8s-auth] $*"; }
 
 vault_cmd() {
   for attempt in 1 2 3 4 5 6; do
+    set +e
     output="$(vault "$@" 2>&1)"
     status=$?
+    set -e
     if [ "${status}" -eq 0 ]; then
       printf '%s' "${output}"
       return 0

services/vault/scripts/vault_oidc_configure.sh

@@ -5,8 +5,10 @@ log() { echo "[vault-oidc] $*"; }
 
 vault_cmd() {
   for attempt in 1 2 3 4 5 6; do
+    set +e
     output="$(vault "$@" 2>&1)"
     status=$?
+    set -e
     if [ "${status}" -eq 0 ]; then
       printf '%s' "${output}"
       return 0