Fix reference to 7.2.2 CE release in 7.2 (#3760)

Author: ggray-cb

modules/install/pages/upgrade.adoc

@@ -135,10 +135,10 @@ and finally, from *7.2.3* to *7.2.4*.
 | Starting Version | Path to Current Version
 
 | 5.x
-| 5.x  -> 6.6 -> 7.2.3 -> 7.2.4{blank}xref:erlang-7-2-4-footnote2[^+[1]+^]
+| 5.x  -> 6.6 -> 7.2.2 -> 7.2.4{blank}xref:erlang-7-2-4-footnote2[^+[1]+^]
 
 | 6.x
-| 6.0 -> 6.6 -> 7.2.3 -> 7.2.4{blank}xref:erlang-7-2-4-footnote2[^+[1]+^]
+| 6.0 -> 6.6 -> 7.2.2 -> 7.2.4{blank}xref:erlang-7-2-4-footnote2[^+[1]+^]
 
 | 7.x
 | 7.0 -> 7.1 -> 7.2.4{blank}xref:erlang-7-2-4-footnote2[^+[1]+^]