Add PPC Ubuntu Docker image and use it on CI #2739

Job	Run time
lint / python-lint	8s
lint / clang-format	12s
mac / macos-clang-build	1m 55s
mac / macos-clang-build-debug	2m 15s
ubuntu / ubuntu-gcc-build-debug (ubuntu-24.04)	1m 6s
ubuntu / ubuntu-clang-build (ubuntu-24.04)	1m 17s
ubuntu / ubuntu-clang-build (ubuntu-24.04-arm)	2m 23s
ubuntu / ubuntu-gcc-build (ubuntu-24.04-arm)	2m 37s
ubuntu / ubuntu-gcc-build (ubuntu-24.04)	1m 9s
windows / windows-msvc-build-debug	3m 0s
windows / windows-clang-build	3m 16s
windows / windows-msvc-build	2m 46s
mac / macos-clang-test	3m 21s
ubuntu / ubuntu-clang-sanitizer-build (ubuntu-24.04)	2m 41s
ubuntu / ubuntu-clang-test (ubuntu-24.04)	4m 32s
ubuntu / ubuntu-clang-test (ubuntu-24.04-arm)	6m 5s
ubuntu / ubuntu-gcc-test (ubuntu-24.04-arm)	5m 54s
ubuntu / ubuntu-gcc-test (ubuntu-24.04)	4m 22s
windows / windows-msvc-test	2m 13s
windows / windows-clang-test	1m 19s
windows / windows-clang-test-extended	1m 24s
ubuntu / ubuntu-clang-sanitizer-test (ubuntu-24.04)	2m 2s
windows / windows-msvc-test-extended	1m 16s
mac / macos-clang-test-extended	2m 45s
ubuntu / ubuntu-clang-sanitizer-test-extended (ubuntu-24.04)	2m 31s
ubuntu / ubuntu-clang-test-extended (ubuntu-24.04)	3m 19s
ubuntu / ubuntu-clang-test-extended (ubuntu-24.04-arm)	5m 18s
ubuntu / ubuntu-gcc-test-extended (ubuntu-24.04-arm)	4m 9s
ubuntu / ubuntu-gcc-test-extended (ubuntu-24.04)	2m 27s
ubuntu / ubuntu-gcc-build-codecov	3m 43s
perf / ubuntu-gcc-build-perf-stats	1m 1s
	1h 22m 26s

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