[ci] enable tiff in alma10 clang ninja

Author: ferdymercury

.github/workflows/root-ci-config/buildconfig/alma10-clang_ninja.txt

@@ -10,6 +10,7 @@ builtin_lzma=ON
 builtin_nlohmann=ON
 builtin_pcre=ON
 builtin_png=ON
+builtin_tiff=ON
 builtin_vdt=ON
 builtin_xxhash=ON
 builtin_zlib=ON