build: disable std::source_location for macos-gcc

Usage of `std::source_location` on GCC leads to a segfault in
`make_attributes` for currently unknown reasons.

Author: BurningEnlightenment

CMakePresets.json

@@ -232,6 +232,7 @@
                 "base"
             ],
             "cacheVariables": {
+                "DPLX_DLOG_USE_SOURCE_LOCATION": false,
                 "VCPKG_TARGET_TRIPLET": "x64-osx-gcc-14",
                 "VCPKG_CHAINLOAD_TOOLCHAIN_FILE": "${sourceDir}/tools/toolchains/x64-macos-gcc-14.cmake"
             },