C API用のzipファイルからmodelディレクトリをなくし、別でmodelダウンロード可能にする #2101

Job	Run time
actionlint	21s
rust-integration-test-strategy-matrix	2s
rust-lint	3m 49s
rust-unit-test	4m 17s
shellcheck	17s
validate-cargo-lock	32s
build-and-test-java-api (windows-latest)	10m 39s
build-and-test-java-api (macos-latest)	45m 2s
build-and-test-java-api (ubuntu-latest)	4m 37s
build-and-test-python-api (windows-latest)	12m 34s
build-and-test-python-api (macos-latest)	7m 30s
build-and-test-python-api (ubuntu-latest)	4m 18s
build-unix-cpp-example (macos-latest, osx-x64-cpu-cpp-shared)	4m 10s
build-windows-cpp-example	7m 40s
build-unix-cpp-example (ubuntu-latest, linux-x64-cpu-cpp-shared)	2m 50s
c-header	1m 13s
rust-integration-test (windows-2019, directml)	3m 48s
rust-integration-test (macos-11)	2m 32s
rust-integration-test (ubuntu-20.04)	1m 45s
	1h 57m 56s

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