chore(libheifactions)#: Don't even bother with the AOM script and jus…

…t do it in the action

.github/workflows/test-action.yml

@@ -58,7 +58,15 @@ jobs:
             - name: Grab AOM for basic AVIF encoding/decoding
               working-directory: ${{ github.workspace }}/third-party
               run: |
-                .\aom.cmd
+                git clone -b v3.9.0 --depth 1 https://aomedia.googlesource.com/aom
+
+                cd aom
+
+                cmake -S . -B build.libavif -G Ninja -DCMAKE_INSTALL_PREFIX="${{ github.workspace }}/third-party/aom/dist" -DCMAKE_BUILD_TYPE=Release -DENABLE_DOCS=0 -DENABLE_EXAMPLES=0 -DENABLE_TESTDATA=0 -DENABLE_TESTS=0 -DENABLE_TOOLS=0
+                ninja -C build.libavif
+                ninja -C build.libavif install
+
+                cd ..
 
             - name: Configure CMake
               working-directory: ${{ steps.buildoutput.outputs.build-output-dir }}