Enable WebP decoding in Signal using libwebp v1.3.2

Co-authored-by: Greyson Parrelli <greyson@signal.org>
Co-authored-by: Greyson Parrelli <greyson@pop-os.localdomain>

.github/workflows/android.yml

@@ -18,6 +18,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
+      with:
+          submodules: true
 
     - name: set up JDK 17
       uses: actions/setup-java@v3

.github/workflows/diffuse.yml

@@ -15,6 +15,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
       with:
+        submodules: true
         ref: ${{ github.event.pull_request.base.sha }}
 
     - name: set up JDK 17
@@ -45,6 +46,7 @@ jobs:
 
     - uses: actions/checkout@v3
       with:
+        submodules: true
         clean: 'false'
 
     - name: Build with Gradle