Validator rollup (ampproject#23227)

* cl/257092185 Revision bump for ampproject#23137

* cl/257092258 Revision bump for ampproject#23143

* cl/257092328 Revision bump for ampproject#22917

* cl/257092384 Revision bump for ampproject#23180

* cl/257092442 Revision bump for ampproject#23173

* cl/257092491 Revision bump for ampproject#23195

validator/validator-main.protoascii

@@ -26,7 +26,7 @@ min_validator_revision_required: 375
 # newer versions of the spec file. This is currently a Google internal
 # mechanism, validator.js does not use this facility. However, any
 # change to this file (validator-main.js) requires updating this revision id.
-spec_file_revision: 905
+spec_file_revision: 911
 
 styles_spec_url: "https://amp.dev/documentation/guides-and-tutorials/develop/style_and_layout/style_pages"
 script_spec_url: "https://amp.dev/documentation/guides-and-tutorials/learn/spec/amphtml#html-tags"