Remove usage of pkg_resources which has been deprecated

[blnicho]

Summary/Motivation:

pkg_resources has been removed from setuptools. Most common uses of pkg_resources have been superseded by importlib.metadata. This PR replaces uses of pkg_resources with functionality from importlib.metadata.

Changes proposed in this PR:

• Replace deprecated uses of pkg_resources

Legal Acknowledgement

By contributing to this software project, I agree to the following terms and conditions for my contribution:

1. I agree my contributions are submitted under the license terms described in the LICENSE.txt file at the top level of this directory.
2. I represent I am authorized to make the contributions and grant the license. If my employer has rights to intellectual property that includes these contributions, I represent that I have received permission to make contributions and grant the required license on behalf of that employer.

[blnicho]

Integration tests are failing due to an example file that is using pkg_resources. I'll open a PR into the examples repo to fix the notebooks and link it.

[codecov]

Codecov Report

❌ Patch coverage is 77.77778% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 73.67%. Comparing base (da90c69) to head (a19440e).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
idaes/core/util/env_info.py	77.77%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1732   +/-   ##
=======================================
  Coverage   73.67%   73.67%           
=======================================
  Files         398      398           
  Lines       65101    65102    +1     
  Branches    10951    10951           
=======================================
+ Hits        47962    47963    +1     
  Misses      14632    14632           
  Partials     2507     2507           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[dallan-keylogic]

LGTM

[blnicho]

IDAES/examples#161 should fix the same issue in the examples repo. Once it gets merged, that should resolve the integration test failures.