### What changes were proposed in this pull request?
There is only one failed case of `streaming` module in Scala 2.13: `start with non-serializable DStream checkpoint ` in `StreamingContextSuite`.
`StackOverflowError` is thrown here when `SerializationDebugger#visit` method is called.
I found that `inputStreams` and `outputStreams` in `DStreamGraph` can not be matched in `SerializationDebugger#visit` method because `ArrayBuffer` in not `Array` in Scala 2.13.
The main change of this pr is use `mutable.ArraySeq` instead of `ArrayBuffer` to store `inputStreams` and `outputStreams` in `DStreamGraph`, then it can be matched in `SerializationDebugger#visit` method.
### Why are the changes needed?
We need to support a Scala 2.13 build.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
- Scala 2.12: Pass the Jenkins or GitHub Action
- Scala 2.13: Pass GitHub 2.13 Build Action
Do the following:
```
dev/change-scala-version.sh 2.13
mvn clean install -DskipTests -pl streaming -Pscala-2.13 -am
mvn test -pl streaming -Pscala-2.13
mvn test -pl core -Pscala-2.13
```
streaming module:
```
Tests: succeeded 339, failed 0, canceled 0, ignored 2, pending 0
All tests passed.
```
core module:
```
Tests: succeeded 2648, failed 0, canceled 4, ignored 7, pending 0
All tests passed.
```
Closes#29836 from LuciferYang/fix-streaming-213.
Authored-by: yangjie01 <yangjie01@baidu.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
dd80845735