jsonnet: Update to 0.21.0

[lazka]

Removed patches are fixed upstrea,

007-jsonnet-0.20.0-rapidyaml-aarch64.patch: refresh (still needed?)

[striezel]

https://github.com/msys2/MINGW-packages/actions/runs/20853950688/job/59915515643?pr=27275#step:9:358

  [5/39] Building CXX object third_party/rapidyaml/CMakeFiles/ryml.dir/rapidyaml.cpp.obj
  FAILED: [code=1] third_party/rapidyaml/CMakeFiles/ryml.dir/rapidyaml.cpp.obj 
  D:\M\msys64\ucrt64\bin\g++.exe  -ID:/_/B/src/jsonnet-0.21.0/include -ID:/_/B/src/jsonnet-0.21.0/third_party/md5 -ID:/_/B/src/jsonnet-0.21.0/third_party/rapidyaml -ID:/_/B/src/jsonnet-0.21.0/core -ID:/_/B/src/jsonnet-0.21.0/cpp -march=nocona -msahf -mtune=generic -O2 -pipe -Wp,-D_FORTIFY_SOURCE=2 -fstack-protector-strong -Wp,-D__USE_MINGW_ANSI_STDIO=1 -g -Wall -Wextra -Wimplicit-fallthrough -Woverloaded-virtual -pedantic -std=c++17 -fPIC -O3 -O3 -DNDEBUG -std=gnu++17 -MD -MT third_party/rapidyaml/CMakeFiles/ryml.dir/rapidyaml.cpp.obj -MF third_party\rapidyaml\CMakeFiles\ryml.dir\rapidyaml.cpp.obj.d -o third_party/rapidyaml/CMakeFiles/ryml.dir/rapidyaml.cpp.obj -c D:/_/B/src/jsonnet-0.21.0/third_party/rapidyaml/rapidyaml.cpp
  In file included from D:/_/B/src/jsonnet-0.21.0/third_party/rapidyaml/rapidyaml.cpp:6:
  D:/_/B/src/jsonnet-0.21.0/third_party/rapidyaml/ryml_all.hpp: In function 'fast_float::value128 fast_float::full_multiplication(uint64_t, uint64_t)':
  D:/_/B/src/jsonnet-0.21.0/third_party/rapidyaml/ryml_all.hpp:7683:16: error: '_umul128' was not declared in this scope
   7683 |   answer.low = _umul128(a, b, &answer.high); // _umul128 not available on ARM64
        |                ^~~~~~~~
  [6/39] Building CXX object core/CMakeFiles/libjsonnet_static.dir/lexer.cpp.obj
  [7/39] Linking CXX static library libmd5.a
  [8/39] Building CXX object core/CMakeFiles/libjsonnet_static.dir/libjsonnet.cpp.obj
  [9/39] Building CXX object core/CMakeFiles/libjsonnet_static.dir/desugarer.cpp.obj
  [10/39] Building CXX object core/CMakeFiles/libjsonnet_static.dir/formatter.cpp.obj
  ninja: build stopped: subcommand failed.
  ==> ERROR: A failure occurred in build().

So rapidyaml may still need some kind of patch.