Does not run in 3.11 due to mapping import error

[DamionWaltermeyer]

Stated to be fixed in #130 but still does not run in 3.11.

Describe the bug
File "/opt/homebrew/lib/python3.11/site-packages/principalmapper/util/case_insensitive_dict.py", line 34, in
from collections import Mapping, MutableMapping, OrderedDict
ImportError: cannot import name 'Mapping' from 'collections' (/opt/homebrew/Cellar/python@3.11/3.11.2_1/Frameworks/Python.framework/Versions/3.11/lib/python3.11/collections/init.py)

To Reproduce
% pip install principalmapper
Collecting principalmapper
Downloading principalmapper-1.1.5-py3-none-any.whl (145 kB)
Collecting botocore
Downloading botocore-1.29.116-py3-none-any.whl (10.6 MB)
Requirement already satisfied: packaging in /opt/homebrew/lib/python3.11/site-packages (from principalmapper) (23.0)
Collecting python-dateutil
Using cached python_dateutil-2.8.2-py2.py3-none-any.whl (247 kB)
Collecting pydot
Downloading pydot-1.4.2-py2.py3-none-any.whl (21 kB)
Collecting jmespath<2.0.0,>=0.7.1
Using cached jmespath-1.0.1-py3-none-any.whl (20 kB)
Requirement already satisfied: urllib3<1.27,>=1.25.4 in /opt/homebrew/lib/python3.11/site-packages (from botocore->principalmapper) (1.26.15)
Requirement already satisfied: six>=1.5 in /opt/homebrew/lib/python3.11/site-packages (from python-dateutil->principalmapper) (1.16.0)
Collecting pyparsing>=2.1.4
Downloading pyparsing-3.0.9-py3-none-any.whl (98 kB)
Installing collected packages: python-dateutil, pyparsing, jmespath, pydot, botocore, principalmapper
Successfully installed botocore-1.29.116 jmespath-1.0.1 principalmapper-1.1.5 pydot-1.4.2 pyparsing-3.0.9 python-dateutil-2.8.2

% pmapper --profile MYPROFILENAME graph create

Traceback (most recent call last):
File "/opt/homebrew/bin/pmapper", line 5, in
from principalmapper.main import main
File "/opt/homebrew/lib/python3.11/site-packages/principalmapper/main.py", line 24, in
from principalmapper.analysis import cli as analysis_cli
File "/opt/homebrew/lib/python3.11/site-packages/principalmapper/analysis/cli.py", line 20, in
from principalmapper.analysis import find_risks
File "/opt/homebrew/lib/python3.11/site-packages/principalmapper/analysis/find_risks.py", line 37, in
from principalmapper.querying import query_interface
File "/opt/homebrew/lib/python3.11/site-packages/principalmapper/querying/query_interface.py", line 26, in
from principalmapper.querying.local_policy_simulation import *
File "/opt/homebrew/lib/python3.11/site-packages/principalmapper/querying/local_policy_simulation.py", line 32, in
from principalmapper.util.case_insensitive_dict import CaseInsensitiveDict
File "/opt/homebrew/lib/python3.11/site-packages/principalmapper/util/case_insensitive_dict.py", line 34, in
from collections import Mapping, MutableMapping, OrderedDict
ImportError: cannot import name 'Mapping' from 'collections' (/opt/homebrew/Cellar/python@3.11/3.11.2_1/Frameworks/Python.framework/Versions/3.11/lib/python3.11/collections/init.py)

Expected behavior
I expect it to create the graph and not error out.

[jsimoni]

This is fixed in #122, but needs to be merged.