[RPM] the rpm post(un) scriptlets are not run in the expected order

[jcpunk]

%postun runs after %post resulting on the otel-service being stopped after an upgrade of the RPM.

On upgrade, the scripts are run in the following order:

1. %pretrans of new package
2. %pre of new package
3. (package install)
4. %post of new package -- service currently started here
5. %triggerin of other packages (set off by installing new package)
6. %triggerin of new package (if any are true)
7. %triggerun of old package (if it’s set off by uninstalling the old package)
8. %triggerun of other packages (set off by uninstalling old package)
9. %preun of old package
10. (removal of old package)
11. %postun of old package -- service currently stopped here
12. %triggerpostun of old package (if it’s set off by uninstalling the old package)
13. %triggerpostun of other packages (if they’re set off by uninstalling the old package)
14. %posttrans of new package