add more apks

vad/1.10.31/sherpa-onnx-1.10.31-arm64-v8a-silero_vad.apk

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:eb93347766d4b45d337f0ca4d836ca5b616114f070fd5fdfcfd582e6e84bc42f
+size 13346040

vad/1.10.31/sherpa-onnx-1.10.31-armeabi-v7a-silero_vad.apk

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2d153d8bf141a6a0423a3679b818e8b4b2140880497633204b34d2dc42437c94
+size 12563708

vad/1.10.31/sherpa-onnx-1.10.31-x86-silero_vad.apk

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ac13856b9c8eaea3e94adecadd15fd829ae1fde9ff4225709ba156ad735db9d8
+size 14202092

vad/1.10.31/sherpa-onnx-1.10.31-x86_64-silero_vad.apk

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:70b12e25569f2591ddbaa0e78aaf354c37c64a267e8b341b61251091553d37eb
+size 14001394