[SPARK-54662][PYTHON] Add viztracer and debugpy in dev/requirements.txt

### What changes were proposed in this pull request?
Add `viztracer` and `debugpy` in `dev/requirements.txt`

### Why are the changes needed?
for code contributors, the new packages will be installed in `pip install -r dev/requirements.txt`

### Does this PR introduce _any_ user-facing change?
no, dev-only

### How was this patch tested?
manually check `pip install -r dev/requirements.txt`

### Was this patch authored or co-authored using generative AI tooling?
no

Closes #53419 from zhengruifeng/req_debug.

Authored-by: Ruifeng Zheng <ruifengz@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>

Author: zhengruifeng

dev/requirements.txt

@@ -75,6 +75,8 @@ grpc-stubs==1.24.11
 # Debug for Spark and Spark Connect
 graphviz==0.20.3
 flameprof==0.4
+viztracer
+debugpy
 
 # TorchDistributor dependencies
 torch