CLI-1379: TypeError in api:environments:cron-create

[danepowell]

Motivation

Fixes CLI-1379

Proposed changes

Alternatives considered

Testing steps

1. Follow the contribution guide to set up your development environment or download a pre-built acli.phar for this PR.
2. Clear the kernel cache to pick up new and changed commands: ./bin/acli ckc
3. (add specific steps for this pr)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.21%. Comparing base (a700f92) to head (6cfc318).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #1786   +/-   ##
=========================================
  Coverage     92.21%   92.21%           
  Complexity     1817     1817           
=========================================
  Files           121      121           
  Lines          6811     6812    +1     
=========================================
+ Hits           6281     6282    +1     
  Misses          530      530           

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[github-actions]

Try the dev build for this PR: https://acquia-cli.s3.amazonaws.com/build/pr/1786/acli.phar

curl -OL https://acquia-cli.s3.amazonaws.com/build/pr/1786/acli.phar
chmod +x acli.phar