added 2.13 variable (#775)

Co-authored-by: Prachi Yadav <pyadav@pyadav-thinkpadt490s.rmtin.csb>

Author: prachiyadav

variables

@@ -32,9 +32,9 @@ export VALIDATION_STATE=""
 # The value will define the version of Submariner and a channel
 
 # Declare associative arrays for acm/submariner versions
-declare -A ACM_2_12=(
-    [acm_version]='2.12'
-    [submariner_version]='0.19'
+declare -A ACM_2_13=(
+    [acm_version]='2.13'
+    [submariner_version]='0.20'
     [channel]='stable'
 )
 export ACM_2_12