rcstack: fixed image-info parsing from runtime env

scripts/rcstack/rcstack

@@ -3447,7 +3447,7 b' rcstack_cli_image_info_command() {'
   if [[ $verbose ]]; then
 
     ver="unknown"
-    if [[ -f $ENV_FILE ]]; then
+    if [[ -f $RUNTIME_ENV ]]; then
       .env --file $RUNTIME_ENV
       .env get RC_VERSION
       ver=$REPLY
@@ -6823,7 +6823,7 b' rcstack__completions_parse_requirements() {'
 
 # :command.initialize
 initialize() {
-  version="5.0.6"
+  version="5.0.7"
   long_usage=''
   set -e