[MINOR] improvment(docs): Add docker image change log for 0.6.1-incubating (#5088)

### What changes were proposed in this pull request?
Add docker image change log for 0.6.1

### Why are the changes needed?

Just a minor.

### Does this PR introduce _any_ user-facing change?

No.

### How was this patch tested?

No need. Just doc.

Author: roryqi

docs/docker-image-details.md

@@ -19,8 +19,11 @@ docker run --rm -d -p 8090:8090 -p 9001:9001 apache/gravitino:0.6.0-incubating
 
 Changelog
 
+- apache/gravitino:0.6.1-incubating
+  - Based on Gravitino 0.6.1-incubating, you can know more information from 0.6.1-incubating release notes.
+
 - apache/gravitino:0.6.0-incubating (Switch to Apache official DockerHub repository)
-  - Use the latest Gravitino version 0.6.0 source code to build the image.
+  - Use the latest Gravitino version 0.6.0-incubating source code to build the image.
 
 - datastrato/gravitino:0.5.1
   - Based on Gravitino 0.5.1, you can know more information from 0.5.1 release notes.
@@ -53,6 +56,9 @@ docker run --rm -d -p 9001:9001 apache/gravitino-iceberg-rest:0.6.0-incubating
 
 Changelog
 
+- apache/gravitino-iceberg-rest:0.6.1-incubating
+  - Based on Gravitino 0.6.1-incubating, you can know more information from 0.6.1-incubating release notes.
+
 - apache/gravitino-iceberg-rest:0.6.0-incubating.
   - Gravitino Iceberg REST Server with memory catalog backend.
   - Expose ports:
@@ -82,6 +88,8 @@ Changelog
 ### Trino image
 
 Changelog
+- apache/gravitino-playground:trino-435-gravitino-0.6.1-incubating
+  - Use Gravitino release 0.6.1-incubating Dockerfile to build the image.
 
 - apache/gravitino-playground:trino-435-gravitino-0.6.0-incubating (Switch to Apache official DockerHub repository)
   - Use Gravitino release 0.6.0 Dockerfile to build the image.

docs/open-api/openapi.yaml

@@ -22,7 +22,7 @@ info:
   license:
     name: Apache 2.0
     url: https://www.apache.org/licenses/LICENSE-2.0.html
-  version: 0.6.1-incubating-SNAPSHOT
+  version: 0.6.1-incubating
   description: |
     Defines the specification for the first version of the Gravitino REST API.