Update patches for contrib modules

Problem/Motivation

When running composer install, several of the patches to contrib modules no longer apply.

Steps to reproduce

Create a new Panopoly site from the Composer template using the recommended command:
composer create-project panopoly/panopoly-composer-template:9.x-dev somedir --no-interaction

Output for Page Manager patch:

- Applying patches for drupal/page_manager
    https://www.drupal.org/files/issues/2021-08-17/page_manager-lb-title-3176661-3.patch (Issue #3176661: Allow to edit page title when using Layout Builder variant)
   Could not apply patch! Skipping. The error was: Cannot apply patch https://www.drupal.org/files/issues/2021-08-17/page_manager-lb-title-3176661-3.patch

Output for Entity Embed patches:

  - Applying patches for drupal/entity_embed
    https://www.drupal.org/files/issues/2019-10-18/entity-embed-array-to-string--3069448-19.patch (Issue #3069448: Array to string conversion for Media Image)
    https://git.drupalcode.org/project/entity_embed/-/commit/3184cd06637e02b397c20b50c53c19835a843d21.diff (Issue #3260833: Construction of EntityEmbedDisplay plugin instances trigger strpos deprecation on PHP 8.1)
   Could not apply patch! Skipping. The error was: Cannot apply patch https://git.drupalcode.org/project/entity_embed/-/commit/3184cd06637e02b397c20b50c53c19835a843d21.diff

Proposed resolution

Update the patches in Panopoly's composer.json. Entity Embed has a new release that fixes the patched issue; Page Manager has an updated/rerolled patch.

Remaining tasks

Patch and test.

User interface changes

N/A

API changes

N/A

Data model changes

N/A