Update USWDS to resolve SASS deprecations

[jtimpe]

Description:
#1577 upgraded react-scripts to version 5, along with most other frontend dependencies.

After the upgrade, some deprecations are being reported by SASS, resulting from the USWDS library.

<w> Deprecation color.lightness() is deprecated. Suggestion:
<w> 
<w> color.channel($color, "lightness", $space: hsl)
<w> 
<w> More info: https://sass-lang.com/d/color-functions
<w> 
<w> node_modules/@uswds/uswds/packages/uswds-core/src/styles/mixins/helpers/checkbox-and-radio-colors.scss 68:5  -checkbox-and-radio-colors()
<w> node_modules/@uswds/uswds/packages/uswds-core/src/styles/mixins/helpers/checkbox-and-radio-colors.scss 12:3  checkbox-colors()
<w> node_modules/@uswds/uswds/packages/usa-checkbox/src/styles/_usa-checkbox.scss 5:1                            @forward
<w> node_modules/@uswds/uswds/packages/usa-checkbox/src/styles/_index.scss 4:1                                   @forward
<w> node_modules/@uswds/uswds/packages/usa-checkbox/_index.scss 8:1                                              @forward
<w> node_modules/@uswds/uswds/packages/uswds-form-controls/_index.scss 4:1                                       @forward
<w> node_modules/@uswds/uswds/packages/uswds/_index.scss 51:1                                                    @forward
<w> src/index.scss 3:1                                                                                           root stylesheet

USWDS has the following issue open, which reflects this deprecation

• USWDS - Sass 2.0.0: Color function deprecations uswds/uswds#6213

Once the deprecations are resolved in the USWDS library, we need to update to the latest version.

Acceptance Criteria:
Create a list of functional outcomes that must be achieved to complete this issue

• Warning shown above no longer displayed during compilation
• Testing Checklist has been run and all tests pass
• README is updated, if necessary

Tasks:
Create a list of granular, specific work items that must be completed to deliver the desired outcomes of this issue

• Update USWDS once linked issue is resolved in newer version
• Run Testing Checklist and confirm all tests pass

Notes:

• This is an open issue for the library, no possible action presently available to us.

Supporting Documentation:

Open Questions:

[lhuxraft]

Update issue to blocked. Wait to point until issue is resolved by USWDS