fix(nsis): respect --force-run when RUN_AFTER_FINISH is false

[wojtkowiak]

This is a follow up for:

#2951
#2974

oneClick: true,
runAfterFinish: false

My configuration is now working as expected but the auto update is not starting the app after the update.
Please take a look at it but it should now be ok for all cases.

[develar]

Hmm... You want to build one-click installer that doesn't start app on finish, but electron-updater behaviour must be independent and allows you to start app if you pass corresponding flag....

Good catch. Makes sense. One correction — if RUN_AFTER_FINISH defined, we still need to respect isForceRun even if silent. I will merge with this correction.

[wojtkowiak]

Thanks!

if RUN_AFTER_FINISH defined, we still need to respect isForceRun even if silent

Right, I've misinterpreted that conditional.

[mastergberry]

Is this related to #2921 also?

[develar]

Yes.