Phase 1 e2e script doesn't work with chunk size 12 using upload mode direct

[mstraka100]

When running e2e/e2ephase1.sh with --chunk-size 12 and --upload-mode direct passed as parameters to the new_ceremony binary, the first call to control fails with:

thread 'main' panicked at 'The size of response file should be 1573888, but it's 3147776, so something isn't right.', <repo parent directory>/.cargo/git/checkouts/snark-setup-f15b587f8d8f06dd/5b5143a/phase1-cli/src/combine.rs:44:17

This shows the response file is 2x its expected size. When all compression is disabled in the import of snark-setup, the response file becomes 4x its expected size. This bug has not been replicated with any other choice of chunk size, and only occurs using --upload-mode direct. With the same settings, --chunk-size 13 fails to upload chunks due to their being too large, suggesting --chunk-size 12 may simply be too large for --upload-mode direct without different server settings.