Update acme.sh

fix https://github.com/acmesh-official/acme.sh/issues/3127#issuecomment-1030742187

acme.sh

@@ -1141,6 +1141,7 @@ _createkey() {
 
   _debug "Use length $length"
 
+  if ! [ -e "$f" ]; then
     if ! touch "$f" >/dev/null 2>&1; then
       _f_path="$(dirname "$f")"
       _debug _f_path "$_f_path"
@@ -1149,6 +1150,11 @@ _createkey() {
         return 1
       fi
     fi
+    if ! touch "$f" >/dev/null 2>&1; then
+      return 1
+    fi
+    chmod 600 "$f"
+  fi
 
   if _isEccKey "$length"; then
     _debug "Using ec name: $eccname"
@@ -1495,7 +1501,6 @@ _create_account_key() {
   else
     #generate account key
     if _createkey "$length" "$ACCOUNT_KEY_PATH"; then
-      chmod 600 "$ACCOUNT_KEY_PATH"
       _info "Create account key ok."
       return 0
     else
@@ -5611,8 +5616,9 @@ _installcert() {
     if [ -f "$_real_key" ]; then
       cat "$CERT_KEY_PATH" >"$_real_key" || return 1
     else
-      cat "$CERT_KEY_PATH" >"$_real_key" || return 1
+      touch "$_real_key" || return 1
       chmod 600 "$_real_key"
+      cat "$CERT_KEY_PATH" >"$_real_key" || return 1
     fi
   fi