AppleClang: Add flags for C17 and C23

Follow up commit 72f4984c (Clang: C23 support, 2021-02-07).
39 jobs for !6231 with c_17_23-AppleClang in 15 minutes and 51 seconds (queued for 4 seconds)
latest detached
Status Job ID Name Coverage
  Build
manual #5881626
linux docker build cmake manual
build:centos6-x86_64
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linux-3.17 linux docker build cmake manual
build:fedora34-ninja
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nonconcurrent xcode-12.5 shell macos cmake manual
build:macos-x86_64-makefiles
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nonconcurrent xcode-12.5 shell macos cmake manual
build:macos-x86_64-ninja
manual #5881630
nonconcurrent msvc-19.29-16.10 vs2019 shell windows cmake manual
build:windows-vs2019-x64-ninja
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docker build cmake linux
lint:codespell

00:00:45

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linux docker build cmake
lint:debian10-iwyu

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linux-3.17 linux docker build cmake
lint:fedora34-sphinx

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linux-3.17 linux docker build cmake
lint:fedora34-tidy

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  Test
created #5881631
x11 linux-3.17 linux docker cmake
test:fedora34-ninja
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nonconcurrent xcode-12.5 shell macos cmake
test:macos-x86_64-makefiles
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nonconcurrent xcode-12.5 shell macos cmake
test:macos-x86_64-ninja
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nonconcurrent msvc-19.29-16.10 vs2019 shell windows cmake
test:windows-vs2019-x64-ninja
 
  Test Ext
created #5881637
linux docker cuda-rt cmake
test:cuda10.2-nvidia
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linux-3.17 linux docker build cmake
test:debian10-ninja
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linux-3.17 linux docker build cmake
test:fedora34-makefiles
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linux-3.17 linux docker build cmake
test:fedora34-ninja-multi
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concurrent xcode-12.5 shell macos cmake
test:macos-x86_64-xcode
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concurrent msvc-19.29-16.10 vs2019 shell windows cmake
test:windows-vs2019-x64
 
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