Fix missing Ansible version in the error message

Change-Id: Iefa8f78142c502ac9e8ebdbb95c94b2b05f99e5b
Closes-Bug: #1948979

releasenotes/notes/bug-1948979-aaf2a93cc016ffb1.yaml

+---
+fixes:
+  - |
+    Fixes missing current Ansible version in the error message.
+    `LP#1948979 <https://launchpad.net/bugs/1948979>`__

tools/kolla-ansible

@@ -60,7 +60,7 @@ function check_environment_coherence {
 
     if [[ $(printf "%s\n" "$ANSIBLE_VERSION_MIN" "$ANSIBLE_VERSION_MAX" "$ansible_version" | sort -V | head -n1) != "$ANSIBLE_VERSION_MIN" ]] ||
        [[ $(printf "%s\n" "$ANSIBLE_VERSION_MIN" "$ANSIBLE_VERSION_MAX" "$ansible_version" | sort -V | tail -n1) != "$ANSIBLE_VERSION_MAX" ]]; then
-        echo "ERROR: Ansible version should be between $ANSIBLE_VERSION_MIN and $ANSIBLE_VERSION_MAX. Current version is $ANSIBLE_VERSION_HOST which is not supported."
+        echo "ERROR: Ansible version should be between $ANSIBLE_VERSION_MIN and $ANSIBLE_VERSION_MAX. Current version is $ansible_full_version which is not supported."
         exit 1
     fi
 }