minimal-sdk: add missing DLLs for clang.exe

While working on adding a `ci-artifacts` pipeline to `git-sdk-arm64`, which contains a test for `clang.exe`, the command failed because of some missing DLLs.

This commit ensures the missing DLLs will be added to the `minimal-sdk` artifact.

Ref: git-for-windows#22
Signed-off-by: Dennis Ameling <[email protected]>

Author: dennisameling

.sparse/minimal-sdk

@@ -21,8 +21,11 @@
 /clangarm64/bin/libgmp-*[0-9].dll
 /clangarm64/bin/libclang.dll
 /clangarm64/bin/libclang-cpp.dll
+/clangarm64/bin/libffi-8.dll
 /clangarm64/bin/libLLVM-*[0-9].dll
+/clangarm64/bin/liblzma-5.dll
 /clangarm64/bin/libwinpthread-*[0-9].dll
+/clangarm64/bin/libxml2-2.dll
 /clangarm64/bin/libzstd.dll
 /clangarm64/bin/llvm-strip.exe
 /clangarm64/bin/windres.exe