Remove Felix from ping groups and review rotation

Author: oli-obk

triagebot.toml

@@ -1013,7 +1013,6 @@ compiler = [
     "@nnethercote",
     "@oli-obk",
     "@petrochenkov",
-    "@pnkfelix",
     "@wesleywiser",
 ]
 libs = [
@@ -1105,7 +1104,6 @@ types = [
 ]
 borrowck = [
     "@davidtwco",
-    "@pnkfelix",
     "@matthewjasper"
 ]
 ast_lowering = [