shadowsocks - extract rust, bump ndk

metadata/com.github.shadowsocks.yml

@@ -324,13 +324,16 @@ Builds:
       - popd
       - sed -i -e '/isEnable/s/true/false/' ../buildSrc/src/main/kotlin/Helpers.kt
     build:
+      - export rustVersion=$(grep RUST_VERSION ../.circleci/config.yml | cut -d ":"
+        -f2 | head -n1)
+      - '[[ $rustVersion ]] || exit 1'
       - $$rustup$$/rustup-init.sh -y
       - source $HOME/.cargo/env
-      - rustup default 1.65.0
+      - rustup default $rustVersion
       - cd ../core/src/main/rust/shadowsocks-rust
       - rustup target add armv7-linux-androideabi aarch64-linux-android i686-linux-android
         x86_64-linux-android
-    ndk: r25b
+    ndk: 27.0.12077973
 
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