Temporary increase of repository size

Hello,

I've hit the maximum size limit on my repo because I pushed a very large number of small files.

I've now removed these files from the entire history using BFG, and the repo size locally is now only 419MB. However, I can't push these changes because I'm currently 3MB over the 1GB limit. Is it possible to temporarily increase the limit so I can push the cleaned up repo?

The repo in question is here: https://gitlab.developers.cam.ac.uk/psychol/abg/vpl-modelling

$ git count-objects -vH
count: 0
size: 0 bytes
in-pack: 4044
packs: 1
size-pack: 419.91 MiB
prune-packable: 0
garbage: 0
size-garbage: 0 bytes

Thanks in advance!