Fix bad change to unzip command. We're using AWS CLI 1, not 2

# Rust tests and lints will be skipped. Delete if not intended.
[ci skip-rust]

# Building wheels and fs_util will be skipped. Delete if not intended.
[ci skip-build-wheels]

build-support/bin/install_aws_cli_for_ci.sh

@@ -24,7 +24,7 @@ if [[ ! -x "${AWS_CLI_BIN}" ]]; then
   unzip awscli-bundle.zip
   # NB: We must run this with python3 because it defaults to `python`, which refers to Python 2 in Linux GitHub
   # Actions CI job and is no longer supported.
-  python3 ./aws/install --install-dir "${AWS_CLI_ROOT}"
+  python3 ./awscli-bundle/install --install-dir "${AWS_CLI_ROOT}"
 
   popd