fix(deps): Update eclipse-temurin Docker tag to v21 (#212)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| eclipse-temurin | final | major | `20-jre` -> `21.0.2_13-jre` |

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Author: cq-bot

Dockerfile

@@ -8,7 +8,7 @@ COPY . .
 
 RUN gradle jar --no-daemon
 
-FROM eclipse-temurin:20-jre
+FROM eclipse-temurin:21.0.2_13-jre
 
 COPY --from=build /code/lib/build/libs/*.jar /app/app.jar