[SPARK-40725][INFRA] Add `mypy-protobuf` to dev/requirements
[SPARK-40725][INFRA] Add `mypy-protobuf` to dev/requirements

### What changes were proposed in this pull request?
Add `mypy-protobuf` to dev/requirements

### Why are the changes needed?
`connector/connect/dev/generate_protos.sh` requires this package:
```
DEBUG   /buf.alpha.registry.v1alpha1.GenerateService/GeneratePlugins    {"duration": "14.25µs", "http.path": "/buf.alpha.registry.v1alpha1.GenerateService/GeneratePlugins", "http.url": "https://api.buf.build/buf.alpha.registry.v1alpha1.GenerateService/GeneratePlugins", "http.host": "api.buf.build", "http.method": "POST", "http.user_agent": "connect-go/0.4.0-dev (go1.19.2)"}
DEBUG   command {"duration": "9.238333ms"}
Failure: plugin mypy: could not find protoc plugin for name mypy
```

### Does this PR introduce _any_ user-facing change?
No, only for contributors

### How was this patch tested?
manually check

Closes #38186 from zhengruifeng/add_mypy-protobuf_to_requirements.

Authored-by: Ruifeng Zheng <21ef94aec54fae1a36abbd011347596ae66d9959@apache.org>
Signed-off-by: Yikun Jiang <2206089eaa6cfa02a44178196e5767f367cbca91@gmail.com>

mahak/spark,srowen/spark,mahak/spark,srowen/spark,shaneknapp/spark,apache/spark,dongjoon-hyun/spark,vinodkc/spark,vinodkc/spark,dongjoon-hyun/spark,vinodkc/spark,wangyum/spark,ueshin/apache-spark,dongjoon-hyun/spark,mahak/spark,HyukjinKwon/spark,wangyum/spark,apache/spark,dongjoon-hyun/spark,mahak/spark,zzcclp/spark,ueshin/apache-spark,ueshin/apache-spark,dongjoon-hyun/spark,hvanhovell/spark,dongjoon-hyun/spark,srowen/spark,hvanhovell/spark,hvanhovell/spark,mahak/spark,ueshin/apache-spark,srowen/spark,mahak/spark,shaneknapp/spark,hvanhovell/spark,apache/spark,HyukjinKwon/spark,HyukjinKwon/spark,zzcclp/spark,ueshin/apache-spark,vinodkc/spark,HyukjinKwon/spark,dongjoon-hyun/spark,hvanhovell/spark,apache/spark,vinodkc/spark,shaneknapp/spark,vinodkc/spark,srowen/spark,ueshin/apache-spark,wangyum/spark,srowen/spark,apache/spark,hvanhovell/spark,zzcclp/spark,HyukjinKwon/spark,zzcclp/spark,zzcclp/spark,ueshin/apache-spark,wangyum/spark,HyukjinKwon/spark,HyukjinKwon/spark,zzcclp/spark,apache/spark,shaneknapp/spark,hvanhovell/spark,apache/spark,vinodkc/spark,wangyum/spark,wangyum/spark,wangyum/spark,shaneknapp/spark,mahak/spark,shaneknapp/spark,shaneknapp/spark,zzcclp/spark,srowen/spark