Docs & testing patch queue

- Test QAPI firmware.json schema (Thomas)
- Handle new env.doc2path() return value (Peter)
- Improve how assets are used by some Avocado tests (Cleber)
- Remove obsolete check for macOS 10 (Peter)

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# gpg: Signature made Wed 31 Jul 2024 08:19:17 AM AEST
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]

* tag 'docs-testing-20240731' of https://github.com/philmd/qemu:
  osdep.h: Clean up no-longer-needed back-compat for macOS 10
  tests/avocado: test_arm_emcraft_sf2: handle RW requirements for asset
  tests/avocado: mips: add hint for fetchasset plugin
  tests/avocado: mips: fallback to HTTP given certificate expiration
  docs/sphinx/depfile.py: Handle env.doc2path() returning a Path not a str
  docs: add test for firmware.json QAPI

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>