chore: change to JDK 17

.github/workflows/build.yml

@@ -8,7 +8,7 @@ on:
 
 env:
   FLUTTER_VERSION: "3"
-  JAVA_VERSION: "11"
+  JAVA_VERSION: "17"
 
 jobs:
   build-android:

.github/workflows/test.yml

@@ -6,7 +6,7 @@ on:
 
 env:
   FLUTTER_VERSION: "3"
-  JAVA_VERSION: "11"
+  JAVA_VERSION: "17"
 
 jobs:
   unit:

README.md

@@ -36,7 +36,7 @@ [email protected]
 
 ### Run
 
-You need to install `flutter`
+You need to install `flutter` and `JDK 17`.
 
 ```bash
 flutter run
@@ -66,16 +66,6 @@ You need to start emulator/device.
 flutter drive --target=test_driver/app.dart
 ```
 
-### Apple Silicon JDK 8 설치
-
-Apple Silicon은 aarch64로 컴파일된 JDK 8 버전을 설치하여야  
-`sdkmanager`와 같은 Android SDK tool들을 사용할 수 있습니다.
-
-```bash
-brew tap mdogan/zulu
-brew install zulu-jdk8
-```
-
 ## How to contribute?
 
 Please visit [CONTRIBUTING.md](https://github.com/sparcs-kaist/otl-app/blob/main/CONTRIBUTING.md)