USWDS - Dependencies: Update dev dependencies.

[mejiaj]

Description

Updating dev dependencies.

dependency	old	new
@babel/preset-env	7.14.2	7.14.5
@types/node	14.17.0	14.17.3
autoprefixer	10.2.5	10.2.6
axe-core	4.2.1	4.2.2
chrome-launcher	0.13.4	0.14.0
chrome-remote-interface	0.28.2	0.30.1
eslint	7.27.0	7.28.0
eslint-plugin-import	2.23.3	2.23.4
gulp-changed	4.0.2	4.0.3
postcss	8.3.0	8.3.4
prettier	2.3.0	2.3.1
sass	1.34.0	1.35.1
snyk	1.606.0	1.634.0
typescript	4.2.4	4.3.2

Additional information

After npm outdated:

Package                   Current   Wanted   Latest 
@types/node               14.17.3  14.17.3  15.12.2 
eslint-config-prettier      7.2.0    7.2.0    8.3.0 
gulp-filter                 6.0.0    6.0.0    7.0.0 
mocha                       8.4.0    8.4.0    9.0.0 
node-notifier               9.0.1    9.0.1   10.0.0 
postcss-discard-comments    4.0.2    4.0.2    5.0.1 
receptor                    1.0.0    1.0.0    2.2.1 
sinon                       9.2.4    9.2.4   11.1.1 
yargs                      16.2.0   16.2.0   17.0.1 

Before you hit Submit, make sure you’ve done whichever of these applies to you:

• Follow the 18F Front End Coding Style Guide and Accessibility Guide.
• Run npm test and make sure the tests for the files you have changed have passed.
• Run your code through HTML_CodeSniffer and make sure it’s error free.
• Title your pull request using this format: [Website] - [UI component]: Brief statement describing what this pull request solves.

[thisisdano]

Added notifications, deprecations, and other release step additions.