[Fedora-spins] update target size of blocking images

Hello, QA is trying to consolidate target sizes for all release blocking images in Fedora into a single document that we can easily check, in a response to one of blocking images being oversize again [1]. The document of choice is this wiki page [2]. In a newly added column, the target size of each release-blocking image will be documented. (It can also contain target sizes of non-blocking images, but our major focus is on the blocking ones, of course). The target size will be a blocker for Fedora Final releases. The target sizes for Spins SIG-owned release blocking images are currently considered [3] as follows: Everything netinst 700 MiB We'd like you to think over whether this is still correct, decide on new numbers if needed, and then write it down into the document [2]. (If you decide to change it in the future, notifying us at the same time is very appreciated.) We'd like to avoid the situation when the image goes oversize and the target size is simply bumped, because it adds delays to the release process. So please think ahead and choose a size that you really want to keep and block on it (You can of course also choose to have no=unlimited target size). The Everything netinst image is blocking for optical media, so it makes sense to keep it under either CD limit (as it currently is), or DVD limit (4.7 GB). The choice is up to your consideration. Thank you. [1] https://lists.fedoraproject.org/archives/list/test@lists.fedoraproject.or... [2] https://fedoraproject.org/wiki/Releases/28/ReleaseBlocking [3] https://fedoraproject.org/wiki/QA:Testcase_Mediakit_ISO_Size#Expected_Res...