msys2 upgraded mingw gcc to 12

Author: lkeegan

README.md

@@ -6,7 +6,7 @@ Get the latest versions here:
 
 - linux (clang 14 / Ubuntu 18.04): [sme_deps_llvm_linux.tgz](https://github.com/spatial-model-editor/sme_deps_llvm/releases/latest/download/sme_deps_llvm_linux.tgz)
 - osx (Apple clang 13 / macOS 11): [sme_deps_llvm_osx.tgz](https://github.com/spatial-model-editor/sme_deps_llvm/releases/latest/download/sme_deps_llvm_osx.tgz)
-- win32-mingw (mingw-w64-i686-gcc 11): [sme_deps_llvm_win32-mingw.tgz](https://github.com/spatial-model-editor/sme_deps_llvm/releases/latest/download/sme_deps_llvm_win32-mingw.tgz)
-- win64-mingw (mingw-w64-x86_64-gcc 11): [sme_deps_llvm_win64-mingw.tgz](https://github.com/spatial-model-editor/sme_deps_llvm/releases/latest/download/sme_deps_llvm_win64-mingw.tgz)
+- win32-mingw (mingw-w64-i686-gcc 12): [sme_deps_llvm_win32-mingw.tgz](https://github.com/spatial-model-editor/sme_deps_llvm/releases/latest/download/sme_deps_llvm_win32-mingw.tgz)
+- win64-mingw (mingw-w64-x86_64-gcc 12): [sme_deps_llvm_win64-mingw.tgz](https://github.com/spatial-model-editor/sme_deps_llvm/releases/latest/download/sme_deps_llvm_win64-mingw.tgz)
 - win32-msvc (VC++ 2015 Toolset): [sme_deps_llvm_win32-msvc.tgz](https://github.com/spatial-model-editor/sme_deps_llvm/releases/latest/download/sme_deps_llvm_win32-msvc.tgz)
 - win64-msvc (VC++ 2015 Toolset): [sme_deps_llvm_win64-msvc.tgz](https://github.com/spatial-model-editor/sme_deps_llvm/releases/latest/download/sme_deps_llvm_win64-msvc.tgz)