[Enhancement] Some optimizations to EventMeshCloudEventUtils.

[Alonexc]

Search before asking

• I had searched in the issues and found no similar issues.

Enhancement Request

located at:
eventmesh-common/src/main/java/org/apache/eventmesh/common/protocol/grpc/common/EventMeshCloudEventUtils.java
analysis and explanation:

1. Repeated code operations can be accomplished using a single method.
2. Passing a non-null argument to 'Optional'.[366,383]
3. Condition 'protoData == null' and 'binaryData == null' is always 'false'.[370,374]
4. 'return' is unnecessary as the last statement in a 'void' method[416]

Describe the solution you'd like

1. Extract as a method.
   
2. Replace with 'Optional.of()'
   
3. Remove
   
4. Remove unnecessary return.

Are you willing to submit PR?

• Yes I am willing to submit a PR!

[maximzgardan]

I want to fix this issue!

[Alonexc]

@maxim-zgardan OK! Welcome to the eventmesh community!