fix compat breaking: revive workaround padding in decode() #3079

Job	Run time
rust-lint	5m 44s
shellcheck	21s
actionlint	13s
validate-cargo-lock	23s
build-and-test-java-api (windows-latest)	6m 31s
build-and-test-java-api (macos-latest)	2m 52s
build-and-test-java-api (ubuntu-latest)	2m 45s
build-and-test-python-api (windows-latest)	6m 22s
build-unix-cpp-example (macos-latest, osx-x64-cpu-cpp-shared)	1m 29s
build-windows-cpp-example	3m 39s
build-and-test-python-api (macos-latest)	4m 9s
build-unix-cpp-example (ubuntu-latest, linux-x64-cpu-cpp-shared)	1m 49s
build-and-test-python-api (ubuntu-latest)	3m 3s
c-header	44s
rust-integration-test-strategy-matrix	1s
rust-unit-test	4m 23s
rust-integration-test (macos-12)	2m 7s
rust-integration-test (ubuntu-20.04)	1m 23s
	47m 58s

Provide feedback