MdeModulePkg: Update Brotli Compress to 1.2.0

# Description

Update brotli from v1.0.9 to v1.2.0
https://github.com/google/brotli/releases/tag/v1.2.0

- [ ] Breaking change?
  - **Breaking change** - Does this PR cause a
    break in build or boot behavior?
  - Examples: Does it add a new library class
    or move a module to a different repo.
- [x] Impacts security?
  - **Security** - Does this PR have a direct security impact?
  - Fixes CVE-2025-6176 reported in brotli < 1.2.0.
- [ ] Includes tests?
  - **Tests** - Does this PR include any explicit test code?
  - Examples: Unit tests or integration tests.

## How This Was Tested

Verified booting on a virtual platform by
compressing/decompressing PEI/DXE sections.

## Integration Instructions
NA

Signed-off-by: Vineel Kovvuri[MSFT] <vineelko@microsoft.com>
3 files changed