🏗 Consolidate GH actions workflow file and add `yarn` caching (amppro…

…ject#29886)

Add begin to render requests to a4a ad (ampproject#29779)

* add begin to render requests support to a4a

* nit

* start from 0

* isolate btrUrl with url

Sync from Google (ampproject#29870)

* Internal Refactoring

PiperOrigin-RevId: 327119354

* - Fix ASAN error memory accessed after its freed error. Updated comment in
  parser not to use temporary. This fix the fuzz test asan error.
- The testdata/* doesn't work as it contains .dat (binary files) and parser
  always fails (crashes) for non-text files. Copied some test dataset from
  similar project which seems to be working and well tested.
- After running parser on binary content, we saw a few generally unreachable
  code triggering runtime exceptions in the form of LOG(FATAL) statements.
  Supress such exceptions by replacing invalid utf8 char with replacement
  character \U+FFFD

  This remove one more exception that may potentially terminate servers for one
  bad document.

PiperOrigin-RevId: 327121381

Co-authored-by: Amaltas Bohra <[email protected]>

Fix 3p ad viewportCallback (ampproject#29853)

(cherry picked from commit 19589ea)

Fix 3p ad viewportCallback (ampproject#29853)

(cherry picked from commit 19589ea)

♻️no-signing: don't wait for fie install before writing (ampproject#2…

…9828)

* make it faster

* fix merge and types

* listenOnce

* fix tests

* invert merge flag

Validator rollup (ampproject#29830)

* cl/324926702 Add value_regex support for css declarations.

* cl/325128764 Fix css "bug" where declaration::FirstIdent doesn't return numerical identifiers.

* cl/325141241 Fix AMP4Email CSS spec by ensuring only properties that should be allowed in emails are allowlisted.

* cl/325253809 Improve `!important` CSS marker error message

* cl/325256844 Revision bump for ampproject#29643

* cl/325359140 Validator: Add support for link imagesrcset and imagesizes

* cl/325491434 Replace INVALID_DOCTYPE_HTML with a new message.

* cl/325899515 Ban max-entries for AMP for Email

* cl/326083373 Revert removal of requires_usage and deprecated_allow_duplicates for email

* cl/326527018 Revision bump for ampproject#29766

* cl/326533269 Revision bump for ampproject#29748

Co-authored-by: Greg Grothaus <[email protected]>
Co-authored-by: honeybadgerdontcare <[email protected]>
Co-authored-by: Justin Ridgewell <[email protected]>

amp-consent iframe modal UI (ampproject#29204)

* init, no tests

* tests

* documentation + cleanup

* Suggested Changes

* Suggested Changes

* Lightbox => Modal, housekeeping, clarity

* Compound classes

✨Added validation for interactives (ampproject#29748)

* Added beginning of validation

* Added most functionality to validator

* Added text to results category

* Created more validation tsets

* Updated years

* Fixed numbers in valdator example

* Updated validator out

* Added chip style transparent and grid-layer

* Grid layer as ancestor

⏪ Temporarily revert lazy polyfill web animations (ampproject#29772)

* Revert polyfill web animations lazily due to issue with FIE
* Type was wrong