Test

Update GitHub Actions to `codecov/codecov-action@v6` #1413

Job	Run time
Generate Matrix	8s
Suite / MACOS_X64_DEBUG_NTS	21m 45s
Suite / LINUX_X32_DEBUG_ZTS	12m 17s
Suite / LINUX_X64_RELEASE_NTS	21m 59s
Suite / LINUX_X64_ASAN_DEBUG_ZTS	40m 56s
Suite / FREEBSD_NTS	10m 8s
Suite / WINDOWS_X64_ZTS	26m 42s
Suite / COMMUNITY_${{ matrix.type }}	0s
Suite / LINUX_PPC64_ASAN_DEBUG_ZTS	0s
Suite / BENCHMARKING	0s
Suite / SOLARIS	0s
Suite / MSAN	0s
Suite / COVERAGE	0s
Suite / OPCACHE_VARIATION	0s
Suite / LIBMYSQLCLIENT	0s
Suite / ALPINE_X64_ASAN_DEBUG_ZTS	0s
Suite / PECL	0s
	2h 13m 55s

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