v2024.6

This release brings us various bug fixes on top of enhancements to ci, docs and tests.
What's Changed:

Alexander Larsson (3):
      _ostree_ensure_fsverity: Properly check for errors
      prepare-root: Handle non-AB aboot properly
      Fix _ostree_ensure_fsverity reporting of supports in early exit

Colin Walters (12):
      configure: post-release version bump
      curl: Also map HTTP errors for retries
      sepolicy: Add missing `(nullable)`
      init-fs: Add --epoch
      init-fs: Add --epoch=2
      tests: Skip composefs tests without the feature
      ci: Drop `SKIP_INSTALLDEPS=1`
      Switch to external composefs
      ci: Only run clang-format on ubuntu-stable GH runner
      ci: Also skip if we detect /run/.containerenv
      sysroot: Handle `/ostree/deploy` having epoch 0
      docs: Describe offline updates with static deltas

Dan Nicholson (2):
      tests: Correctly skip single fsverity test
      repo: Make summary and signature mtime match

Eric Curtin (3):
      README & docs: Remove "RHIVOS" acronym
      docs: More accurate diagram in bootloaders documentation for aboot
      docs: Fix spelling and grammer

Jonathan Lebon (1):
      ostree-prepare-root.service: add OnFailureJobMode=isolate

Joseph Marrero (3):
      ostree-sysroot-deploy: check if deployments are in the same stateroot.
      Release 2024.6
      configure: post-release version bump

Full Changelog: v2024.5...v2024.6