CI (Buildbot, GHA): in the "Statuses" workflow, remove the macosaarch64 and musl64 statuses (#41824)

(cherry picked from commit bdd7457)

Author: DilumAluthge

.github/workflows/statuses.yml

@@ -68,8 +68,6 @@ jobs:
                 "buildbot/tester_linuxarmv7l"
                 "buildbot/tester_linuxppc64le"
                 "buildbot/tester_macos64"
-                "buildbot/tester_macosaarch64"
-                "buildbot/tester_musl64"
                 "buildbot/tester_win32"
                 "buildbot/tester_win64"
                 )