Split into more stages to go over the 6 hour limit.

[HinTak]

See #6 - it is just a couple of minutes short.

[HinTak]

Beta 2 against 6.8.1-3 base / 6.8.1 header took 5 h 55min

Beta 2 against 6.8.1-3 base / 6.8.2 header took 5 h 51 min 30

Failed beta 3 took 5 h 58 min.

[HinTak]

There is no good split as the single rpmbuild step itself is 5 hour 58 min. So it is all about making the other steps quicker... it is close, and it may go up and down.

[HinTak]

Qt webengine seems to build gn first - possible to not do it, I think.

[HinTak]

Rc1 was 5 hours 54 min with a 52 min 30 s stage.

[HinTak]

Rebuild 6.9.0 on 6.9.0 is back down to 5h 42m with a 31m 2nd stage. Fewer patches and against some version header helps?