Updated NDK version in the pipeline

Author: Ojin13

.github/workflows/flutter-ci.yml

@@ -129,7 +129,7 @@ jobs:
     - name: Set up Rust for Android
       if: matrix.target == 'Android'
       env:
-        ANDROID_NDK_HOME: /usr/local/lib/android/sdk/ndk/25.2.9519653
+        ANDROID_NDK_HOME: /usr/local/lib/android/sdk/ndk/27.0.12077973
         ANDROID_API: 33
       # add rust android targets,
       # point cargo to local Android NDK installation

.gitignore

@@ -47,4 +47,7 @@ app.*.map.json
 /android/app/.cxx
 
 # FVM Version Cache
-.fvm/
+.fvm/
+
+# Machine-specific Cargo config
+meesign_native/native/meesign-crypto/.cargo/config.toml