Release: v1.27.2

[rvagg]

[This release] contains an upgraded libp2p to v0.35.3 which is included in this release for additional testing of some fixes that may solve some connectivity problems experienced by some users (See libp2p/go-libp2p#2858 for more information).

We'd like to use this release for some early testing of the libp2p upgrade before it goes out in the v1.28.0 final release.

[rjan90]

Added nit on the changelog, but apart from that it looks good

[rvagg]

Post-mortem items:

• This required a further merge of release/v1.27.2 into the releases branch to finalise Release: v1.27.2 #12250, which is different from RC builds. This is as designed but needs to change for v1.28.0 forward because we are not using the releases branch for that.
• This created miner builds and a miner release: https://github.com/filecoin-project/lotus/releases/tag/untagged-086fb5cb1c887e1c1658, although the release page is mostly empty except for some titles and the build assets. I cancelled the miner release step before it did its thing so we haven't pushed that: https://github.com/filecoin-project/lotus/actions/runs/9972453588/job/27556032962
• The release page it posted had two titles and two contributor tables; one taken from the CHANGELOG and one generated. The contributors table that was generated was more correct although the title wasn't an h2 (##), I forgot to redo it. But I edited the release page after the draft was created, but when it did the final release it overwrote my edits so I have to edit it again. It would be good if the draft could be used to get it right before it's pushed to the wild since some people get the original via email or other notification where the edits won't be seen after publish.