Fix traceback in template action with ANSIBLE_DEBUG=1

[mkrizek]

SUMMARY

Introduced in 884244f

Fixes #79763

Just revert the change from the commit above based on the following dummy perf test:

% python -m timeit -s 'd = {"a": 1}; o = {"a": 2}' 'n = d.copy(); n.update(o)'
2000000 loops, best of 5: 128 nsec per loop

% python -m timeit -s 'd = {"a": 1}; o = {"a": 2}' 'n = d | o'                
5000000 loops, best of 5: 76.6 nsec per loop

% python -m timeit -s 'd = {"a": 1}; o = {"a": 2}' 'n = dict(d) | o'
2000000 loops, best of 5: 155 nsec per loop

ISSUE TYPE

• Bugfix Pull Request

COMPONENT NAME

lib/ansible/plugins/action/template.py

ADDITIONAL INFORMATION