current_stock_price test added (#12390)

* adding test to web_programming/current_stock_price

* adding test to web_programming/current_stock_price

* Update current_stock_price.py

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update current_stock_price.py

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Co-authored-by: Maxim Smolskiy <mithridatus@mail.ru>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>