Revert "Temporarily remove 7.17.X from the upgrade version list until integration tests are stable again (#5450)" (#5471)

This reverts commit 83800f0.

Author: pchila

.agent-versions.json

@@ -4,6 +4,8 @@
     "8.15.0",
     "8.14.4-SNAPSHOT",
     "8.14.3",
-    "8.13.4"
+    "8.13.4",
+    "7.17.24-SNAPSHOT",
+    "7.17.23"
   ]
 }