build(deps): bump third-party/build-deps from cd7d45a to d8b1d18 (#5097)

Bumps [third-party/build-deps](https://github.com/LizardByte/build-deps) from `cd7d45a` to `d8b1d18`.
- [Release notes](https://github.com/LizardByte/build-deps/releases)
- [Commits](cd7d45a4a1...d8b1d18b7e)

---
updated-dependencies:
- dependency-name: third-party/build-deps
  dependency-version: d8b1d18b7e82f8ee396bdd05e226896fa523b0df
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

packaging/linux/flatpak/modules/ffmpeg.json

@@ -8,8 +8,8 @@
   "sources": [
     {
       "type": "file",
-      "url": "https://github.com/LizardByte/build-deps/releases/download/v2026.425.130933/Linux-x86_64-ffmpeg.tar.gz",
-      "sha256": "5b166350b423180646755abb551a8d378dfd9ccdc135e830e297eb0322959a29",
+      "url": "https://github.com/LizardByte/build-deps/releases/download/v2026.508.175015/Linux-x86_64-ffmpeg.tar.gz",
+      "sha256": "2bae3b4fd3c13b2b731b5bc90e888cc535216e85b499b8405d23508eaa589924",
       "dest-filename": "ffmpeg.tar.gz",
       "only-arches": [
         "x86_64"
@@ -23,8 +23,8 @@
     },
     {
       "type": "file",
-      "url": "https://github.com/LizardByte/build-deps/releases/download/v2026.425.130933/Linux-aarch64-ffmpeg.tar.gz",
-      "sha256": "666e6b002153cafeaafb5ec81e6d2b435cf30688f517a6113257a67bcfeab2f7",
+      "url": "https://github.com/LizardByte/build-deps/releases/download/v2026.508.175015/Linux-aarch64-ffmpeg.tar.gz",
+      "sha256": "ea2c9f70cbe0d95493bef8fa44ad5b528d333c251c0b9588fe9dd31f347ff66c",
       "dest-filename": "ffmpeg.tar.gz",
       "only-arches": [
         "aarch64"