fix(compiler): update element schema

[crisbeto]

Updates the DOM element schema to add the hgroup element and to include some properties that weren't supported the last time the schema was updated.

Fixes #47545.

[pkozlowski-opensource]

@crisbeto as discussed, the content of the files if auto-generated, instructions in: https://github.com/angular/angular/blob/main/packages/compiler/test/schema/dom_element_schema_registry_spec.ts#L194-L197

We should run this scrip to see if maybe there are other tags that we are missing. It will also require security review:

angular/packages/compiler/src/schema/dom_element_schema_registry.ts

Lines 65 to 74 in 6a88bad

	// =================================================================================================
	// =================================================================================================
	// =========== S T O P - S T O P - S T O P - S T O P - S T O P - S T O P ===========
	// =================================================================================================
	// =================================================================================================
	//
	// DO NOT EDIT THIS DOM SCHEMA WITHOUT A SECURITY REVIEW!
	//
	// Newly added properties must be security reviewed and assigned an appropriate SecurityContext in
	// dom_security_schema.ts. Reach out to mprobst & rjamet for details.

[crisbeto]

I've run the script and pushed the changes in the fixup commit.

[alxhub]

Also, the commit message should be updated if the change is more than just adding hgroup.

[crisbeto]

For context, the review above is from the internal security team. @alxhub I've updated the PR description.

[pkozlowski-opensource]

LGTM

Reviewed-for: fw-security

[josephperrott]

LGTM

Reviewed-for: fw-security

[jessicajaniuk]

This PR was merged into the repository by commit 48b354a.

[jessicajaniuk]

Reverting. This caused a breakage in Google3.

[crisbeto]

For future reference: there was an app using the now-deprecated content element which was removed when I ran the script.

[crisbeto]

I've resolved the issue that caused the change to be reverted and I've run a TGP just in case.

[jessicajaniuk]

This PR was merged into the repository by commit 39b72e2.

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