Mark v0.7.1 as unmaintained and v0.7.3 as maintained (vllm-project#139)

### What this PR does / why we need it?
Mark v0.7.1 as unmaintained and v0.7.3 as maintained:
vLLM released the v0.7.3 version:
https://github.com/vllm-project/vllm/releases/tag/v0.7.3 which include
serval commits:
- vllm-project/vllm#12874
- vllm-project/vllm#12432
- vllm-project/vllm#13208

We'd better to bump the versions to v0.7.3.

### Does this PR introduce _any_ user-facing change?
No

### How was this patch tested?
Preview

Signed-off-by: Yikun Jiang <[email protected]>

Author: Yikun

README.md

@@ -85,6 +85,13 @@ vllm-ascend has main branch and dev branch.
 - **main**: main branch，corresponds to the vLLM main branch, and is continuously monitored for quality through Ascend CI.
 - **vX.Y.Z-dev**: development branch, created with part of new releases of vLLM. For example, `v0.7.1-dev` is the dev branch for vLLM `v0.7.1` version.
 
+Below is maintained branches:
+
+| Branch     | Status       | Note                                 |
+|------------|--------------|--------------------------------------|
+| main       | Maintained   | CI commitment for vLLM main branch   |
+| v0.7.3-dev | Maintained   | CI commitment for vLLM 0.7.3 version |
+
 Please refer to [Versioning policy](docs/source/developer_guide/versioning_policy.md) for more details.
 
 ## License

README.zh.md

@@ -78,6 +78,13 @@ vllm-ascend有主干分支和开发分支。
 - **main**: 主干分支，与vLLM的主干分支对应，并通过昇腾CI持续进行质量看护。
 - **vX.Y.Z-dev**: 开发分支，随vLLM部分新版本发布而创建，比如`v0.7.1-dev`是vllm-asend针对vLLM `v0.7.1`版本的开发分支。
 
+下面是维护中的分支：
+
+| 分支         | 状态         | 备注                  |
+|------------|------------|---------------------|
+| main       | Maintained | 基于vLLM main分支CI看护   |
+| v0.7.3-dev | Maintained | 基于vLLM v0.7.3版本CI看护 |
+
 请参阅[版本策略](docs/source/developer_guide/versioning_policy.zh.md)了解更多详细信息。
 
 ## 贡献

docs/source/developer_guide/versioning_policy.md

@@ -40,10 +40,12 @@ Note that vllm-ascend will only be released for a certain vLLM release version r
 
 Usually, each minor version of vLLM (such as 0.7) will correspond to a vllm-ascend version branch and support its latest version (for example, we plan to support version 0.7.3) as following shown:
 
-| Branch    | Status     | Note                                 |
-|-----------|------------|--------------------------------------|
-| main      | Maintained | CI commitment for vLLM main branch   |
-| v0.7.1-dev | Maintained | CI commitment for vLLM 0.7.1 version |
+| Branch     | Status       | Note                                 |
+|------------|--------------|--------------------------------------|
+| main       | Maintained   | CI commitment for vLLM main branch   |
+| v0.7.3-dev | Maintained   | CI commitment for vLLM 0.7.3 version |
+| v0.7.1-dev | Unmaintained | Replaced by v0.7.3-dev               |
+
 
 ## Release Compatibility Matrix
 
@@ -57,8 +59,7 @@ Following is the Release Compatibility Matrix for vLLM Ascend Plugin:
 
 ### Next final release (`v0.7.x`) window
 
-| Date | Event |
-|---------|-----------|
-| February 2025 | Release candidates (RC1), v0.7.1rc1 |
-| March 2025 | Release candidates (RC2), v0.7.1rc2 or v0.7.3rc1 |
+| Date       | Event                                                            |
+|------------|------------------------------------------------------------------|
+| March 2025 | Release candidates, v0.7.3rc1                                    |
 | March 2025 | Final release passes, match vLLM v0.7.x latest: v0.7.1 or v0.7.3 |

docs/source/developer_guide/versioning_policy.zh.md

@@ -40,10 +40,11 @@ vllm-ascend有主干和开发两种分支。
 
 通常来说，vLLM每个minor版本（比如0.7）均会对应一个vllm-ascend版本分支，并支持其最新的版本（例如我们计划支持0.7.3版本）。如下所示：
 
-| 分支    | 状态     | 备注                                 |
-|-----------|------------|--------------------------------------|
-| main      | Maintained | 基于vLLM main分支CI看护   |
-| v0.7.1-dev | Maintained | 基于vLLM 0.7.1版本CI看护 |
+| 分支         | 状态           | 备注                  |
+|------------|--------------|---------------------|
+| main       | Maintained   | 基于vLLM main分支CI看护   |
+| v0.7.3-dev | Maintained   | 基于vLLM v0.7.3版本CI看护 |
+| v0.7.1-dev | Unmaintained | 被v0.7.3-dev分支代替     |
 
 ## 版本配套
 
@@ -57,8 +58,7 @@ vLLM Ascend Plugin (`vllm-ascend`) 的关键配套关系如下:
 
 ### 下一个正式版(`v0.7.x`)发布窗口
 
-| 时间         | 事件                                |
-|------------|-----------------------------------|
-| 2025年02月 | RC版本（RC1）, v0.7.1rc1              |
-| 2025年03月 | RC版本（RC2）, v0.7.1rc2 or v0.7.3rc1 |
-| 2025年03月 | 正式版, 匹配0.7.x最新的vLLM版本: v0.7.1 or v0.7.3 |
+| 时间       | 事件                            |
+|----------|-------------------------------|
+| 2025年03月 | RC版本, v0.7.3rc1               |
+| 2025年03月 | 正式版, 匹配0.7.3最新的vLLM版本: v0.7.3 |