fix(deps): Lock setuptools version to <81 (#5284)

- Update Dockerfile to specify "setuptools<81"
- Modify ModuleUpdate.py to install setuptools with version constraint

Dockerfile

@@ -28,7 +28,7 @@ COPY requirements.txt WebHostLib/requirements.txt
 
 RUN pip install --no-cache-dir -r \
     WebHostLib/requirements.txt \
-    setuptools
+    "setuptools<81"
 
 COPY _speedups.pyx .
 COPY intset.h .