Update DEVSTACK_SERIES to 2024.1

stable/2023.2 branch has been created now and
current master is for 2024.1

Change-Id: I67eee1ba721a1ad99b3503312acc2f94a52c5552
diff --git a/stackrc b/stackrc
index ff30d37..464e935 100644
--- a/stackrc
+++ b/stackrc
@@ -265,7 +265,7 @@
 # Setting the variable to 'ALL' will activate the download for all
 # libraries.
 
-DEVSTACK_SERIES="2023.2"
+DEVSTACK_SERIES="2024.1"
 
 ##############
 #