chore: Override smithy-client to fix CodeQL warning

[dani-chmb]

Issue #, if available:

Code Scanning alert

Description of changes:

Addresses similar issue to corresponding render task definition PR.

The changes were tested by running a workflow that calls the action defined by this PR's commit from a simple ecs application.

Note commit ids of the Github actions executed.

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[dani-chmb]

Unit tests failing since % npm ci gives an error. But on my local machine, % npm ci seems to work.

Update: npm test is the command that's failing.

[dani-chmb]

Added to address unit test failures.

If we regenerate package-lock.json and then run unit-tests, even on the master branch for this repo (which, at the time of writing, points to this commit)

% rm -rf node_modules
% rm package-lock.json
% npm install
% npm ci
% npm test

We will get the same error that triggered the initial unit test failures for this PR, that is:

> aws-actions-amazon-ecs-deploy-task-definition@2.1.2 test
> eslint **.js && jest --coverage

FAIL ./index.test.js
  ● Test suite failed to run

    TypeError: Cannot read properties of undefined (reading 'O_RDONLY')

      1 | const path = require('path');
    > 2 | const core = require('@actions/core');

Example unit test failure

To fix this, we've added this line, originally found in the render task def repository. Note that the render task def repository is passing unit tests.