[docker] Bump amazoncorretto from 17 to 20 (#2)

Bumps amazoncorretto from 17 to 20.

---
updated-dependencies:
- dependency-name: amazoncorretto
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Dockerfile

@@ -9,7 +9,7 @@ COPY src ./src
 RUN mvn verify
 
 # Run stage
-FROM --platform=${TARGETPLATFORM} amazoncorretto:17
+FROM --platform=${TARGETPLATFORM} amazoncorretto:20
 WORKDIR /app
 COPY --from=build /home/lab/target .
 ENTRYPOINT ["java", "-Xmx8m", "-Xms8m", "-jar", "/app/words.jar"]