Extend Current LP7 Crowdloans

With the updated auction schedule, there are two new auctions for LP7 that weren't scheduled at the time that all existing teams opened their LP7 crowdloans. All teams configured their crowdloans to end after the last scheduled LP7 auction that they knew about at the time.

In order to avoid refunding all crowdloans, reopening them for 2 more auctions, and having a large number have to reopen again for LP8, I'm suggesting that teams opt-in to a batch governance call to move the blocks of their crowdloans.

Due to the time remaining, we'd need the Technical Committee to fast track this. With this discussion, I'm looking for:

Parachain teams who would want to be included in the batch
Tech Committee willingness to fast track
Council and community sentiment

The Numbers

All crowdloans currently end at block 9,388,800.

The two new LP7 auctions end on blocks 9,499,000 and 9,671,800.

I suggest changing all (voluntary) crowdloans to end on 9,674,200 (end block + 2,400 for randomness beacon). This would take the form of:

utility.batch(
    crowdloan.edit(
        paraId: 1,
        end: 9_674_200,
        ... // all other config params equal
    ),
    ...
)