fix compat breaking: revive workaround padding in decode() #3076

Job	Run time
shellcheck	11s
actionlint	20s
validate-cargo-lock	20s
build-and-test-java-api (windows-latest)	8m 23s
build-and-test-java-api (macos-latest)	2m 35s
build-and-test-java-api (ubuntu-latest)	2m 39s
build-and-test-python-api (windows-latest)	7m 5s
build-and-test-python-api (macos-latest)	3m 11s
build-and-test-python-api (ubuntu-latest)	2m 59s
build-unix-cpp-example (macos-latest, osx-x64-cpu-cpp-shared)	1m 33s
build-unix-cpp-example (ubuntu-latest, linux-x64-cpu-cpp-shared)	1m 29s
build-windows-cpp-example	4m 20s
c-header	41s
rust-integration-test-strategy-matrix	1s
rust-lint	4m 11s
rust-unit-test	3m 1s
rust-integration-test (macos-12)	2m 16s
rust-integration-test (ubuntu-20.04)	1m 35s
	46m 50s

Provide feedback