FEPS weights not updated by script

[ggwpez]

No idea why #12325 did not update the weights for the election-provider-support but should be fixed.

[bkchr]

Duplicate of paritytech/polkadot-sdk#446

[ggwpez]

Duplicate of paritytech/polkadot-sdk#446

That issue is for pallet-election-provider-multi-phase but this issue is for frame-election-provider-support.
Also there is something wrong with the shell script, since this is just skipped somehow not on the FRAME side,

[ggwpez]

I guess we can use the linked issue for both, will edit it.