@W-17907321 Fix server-timing header delimiter

[kevinxh]

Description

This PR fixes and issue where the Server-Timing header used invalid http delimiter, this PR replaces the : delimiter using .

Types of Changes

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Documentation update
• Breaking change (could cause existing functionality to not work as expected)
• Other changes (non-breaking changes that does not fit any of the above)

Breaking changes include:

• Removing a public function or component or prop
• Adding a required argument to a function
• Changing the data type of a function parameter or return value
• Adding a new peer dependency to package.json

Changes

• Fix server timing header delimiter

How to Test-Drive This PR

• npm start
• go to localhost:3000?__server_timing
• check http response header

Checklists

General

• Changes are covered by test cases
• CHANGELOG.md updated with a short description of changes (not required for documentation updates)

Accessibility Compliance

You must check off all items in one of the follow two lists:

• There are no changes to UI

or...

• Changes were tested with a Screen Reader (iOS VoiceOver or Android Talkback) and had no issues
• Changes comply with WCAG 2.0 guidelines levels A and AA
• Changes to common UI patterns and interactions comply with WAI-ARIA best practices

Localization

• Changes include a UI text update in the Retail React App (which requires translation)

[vcua-mobify]

The changes look good to me. I can see the new delimiter in the response headers

[adamraya]

Should we also update the delimiter used in withLegacyGetProps?

pwa-kit/packages/pwa-kit-react-sdk/src/ssr/universal/components/with-legacy-get-props/index.js

Lines 36 to 52 in 48954fb

	res.__performanceTimer.mark(
	`${PERFORMANCE_MARKS.getProps}::${templateName}`,
	'start'
	)
	})
	return c.getProps
	? c
	.getProps({
	req,
	res,
	params,
	location
	})
	.then((result) => {
	c.getTemplateName().then((templateName) => {
	res.__performanceTimer.mark(
	`${PERFORMANCE_MARKS.getProps}::${templateName}`,

[adamraya]

LGTM

Please also remember to update the docs with the new delimiter:
https://developer.salesforce.com/docs/commerce/pwa-kit-managed-runtime/guide/debugging.html#performance-metrics

[kevinxh]

PR created for docs - https://github.com/salesforcedocs/commerce-cloud/pull/1491