Merge changes from topic "revert-3272897-migrate-arrayvec-NWBXLSKXLL" into main

* changes:
  Revert "Migray arrayvec to monorepo."
  Revert "Update arrayvec to 0.7.6"
tree: 3ca89ad0fab040d341817090ae083722d64902ef
  1. crates/
  2. pseudo_crate/
  3. .gitignore
  4. METADATA
  5. OWNERS
  6. PREUPLOAD.cfg