WIP override CC=clang-14 for AUSAN, don't use CC ?= #1252

Job	Run time
Checkout	9s
Documentation	1m 23s
Build NO_SANITIZER clang ubuntu DEBUG	27s
Build NO_SANITIZER clang ubuntu RELEASE	52s
Build NO_SANITIZER gcc ubuntu DEBUG	21s
Build NO_SANITIZER gcc ubuntu RELEASE	25s
Build AUSAN clang ubuntu DEBUG	41s
Build AUSAN clang ubuntu RELEASE	50s
Build AUSAN gcc ubuntu DEBUG	30s
Build AUSAN gcc ubuntu RELEASE	46s
Build MSAN clang ubuntu DEBUG	29s
Build MSAN clang ubuntu RELEASE	38s
Build MSAN gcc ubuntu DEBUG	46s
Build MSAN gcc ubuntu RELEASE	29s
Build EFENCE clang ubuntu DEBUG	31s
Build EFENCE clang ubuntu RELEASE	33s
Build EFENCE gcc ubuntu DEBUG	48s
Build EFENCE gcc ubuntu RELEASE	26s
Build FUZZER clang ubuntu DEBUG	49s
Build FUZZER clang ubuntu RELEASE	38s
Test (Makefiles) ${{ matrix.make }} ${{ matrix.os }} ${{ matrix.debug }}	0s
Test (Sanitizers) ${{ matrix.san }} ${{ matrix.cc }} ${{ matrix.os }} ${{ matrix.debug }}	0s
Fuzz (mode ${{ matrix.mode }}) ${{ matrix.cc }} ${{ matrix.os }} ${{ matrix.debug }}	0s
Import PCRE suite	0s
Test (PCRE suite) ${{ matrix.lang }} ${{ matrix.san }} ${{ matrix.cc }} ${{ matrix.os }} ${{ matrix.debug }}	0s
Install	0s
Package ${{ matrix.pkg }}	0s
	12m 31s

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