revertme: build just riscv64

Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com>

Author: threexc

.github/workflows/build-ffmpeg.yml

@@ -17,6 +17,7 @@ on:
   workflow_dispatch:
 jobs:
   build:
+    if: false
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
@@ -104,7 +105,7 @@ jobs:
       matrix:
         build: [ "manylinux_", "musllinux_" ]
         # arch: [ "loongarch64", "ppc64le", "riscv64", "s390x" ]
-        arch: [ "ppc64le", "riscv64" ]
+        arch: [ "riscv64" ]
     steps:
       - uses: actions/checkout@v6
       - uses: actions/setup-python@v6