Pin boto3 (#900)

Should bypass this issue on uploads boto/boto3#4398

```
An error occurred (MissingContentLength) when calling the PutObject operation: Unknown
```

Author: singiamtel

Diff for: pyproject.toml

@@ -24,14 +24,15 @@ classifiers = [
     'Programming Language :: Python :: 3.10',  # ubuntu2204
     'Programming Language :: Python :: 3.11',  # MacOS
     'Programming Language :: Python :: 3.12',  # MacOS
+    'Programming Language :: Python :: 3.13',  # MacOS
 ]
 
 dependencies = [
   'pyyaml',
   'requests',
   'distro',
   'jinja2',
-  'boto3',
+  'boto3==1.23.10',
 ]
 
 [project.urls]

Diff for: requirements.txt

@@ -2,4 +2,6 @@ requests
 pyyaml
 distro
 jinja2
-boto3; python_version >= '3.6'
+# https://github.com/boto/boto3/issues/4398
+# This version is the last compatible with python 3.6.8
+boto3==1.23.10; python_version >= '3.6'

Diff for: setup.py

@@ -19,7 +19,7 @@
 # Old setuptools versions (which pip2 uses) don't support range comparisons
 # (like :python_version >= "3.6") in extras_require, so do this ourselves here.
 if sys.version_info >= (3, 6):
-    install_requires.append('boto3')
+    install_requires.append('boto3==1.23.10')
 
 setup(
     name='alibuild',