change back to old settings, only use flutter 3.13.9

.github/workflows/playground.yml

@@ -10,14 +10,14 @@ env:
   RUST_VERSION: "1.75" # https://github.com/rustdesk/rustdesk/discussions/7503
   CARGO_NDK_VERSION: "3.1.2"
   LLVM_VERSION: "15.0.6"
-  FLUTTER_VERSION: "3.16.9"
+  FLUTTER_VERSION: "3.13.9"
   FLUTTER_RUST_BRIDGE_VERSION: "1.80.1"
   # for arm64 linux because official Dart SDK does not work
   FLUTTER_ELINUX_VERSION: "3.16.9"
   TAG_NAME: "nightly"
   VCPKG_BINARY_SOURCES: "clear;x-gha,readwrite"
   # vcpkg version: 2024.03.25
-  VCPKG_COMMIT_ID: "8eb57355a4ffb410a2e94c07b4dca2dffbee8e50"
+  VCPKG_COMMIT_ID: "a34c873a9717a888f58dc05268dea15592c2f0ff"
   VERSION: "1.2.6"
   NDK_VERSION: "r26d"
   #signing keys env variable checks
@@ -44,15 +44,6 @@ jobs:
               os: ubuntu-20.04,
               openssl-arch: android-arm64,
               ref: ebb14af488f31eb651a4c3c4c873aed7303cf53a, # Dec 11
-              ndk: r25c
-            }
-          - {
-              arch: aarch64,
-              target: aarch64-linux-android,
-              os: ubuntu-20.04,
-              openssl-arch: android-arm64,
-              ref: e57d07f7d6cd216c14bd35ab5323fcdd371de464, # Nov 10
-              ndk: r26d
             }
     steps:
       - name: Checkout source code
@@ -118,7 +109,7 @@ jobs:
       - uses: nttld/setup-ndk@v1
         id: setup-ndk
         with:
-          ndk-version: ${{ matrix.job.ndk }}
+          ndk-version: ${{ env.NDK_VERSION }}
           add-to-path: true
 
       - name: Setup vcpkg with Github Actions binary cache
@@ -145,7 +136,7 @@ jobs:
           pushd /opt
           git clone https://github.com/rustdesk-org/rustdesk_thirdparty_lib.git --depth=1
           ls -ls /opt/artifacts/vcpkg/installed/arm64-android/lib/
-          cp -rf /opt/rustdesk_thirdparty_lib/vcpkg/* /opt/artifacts/vcpkg/
+          # cp -rf /opt/rustdesk_thirdparty_lib/vcpkg/* /opt/artifacts/vcpkg/
           ls -ls /opt/artifacts/vcpkg/installed/arm64-android/lib/
 
       - name: Build rustdesk lib