Bump pipenv from 2023.2.4 to 2023.7.11 in /requirements (#1468)

* Bump pipenv from 2023.2.4 to 2023.7.11 in /requirements

Bumps [pipenv](https://github.com/pypa/pipenv) from 2023.2.4 to 2023.7.11.
- [Release notes](https://github.com/pypa/pipenv/releases)
- [Changelog](https://github.com/pypa/pipenv/blob/main/CHANGELOG.rst)
- [Commits](pypa/pipenv@v2023.2.4...v2023.7.11)

---
updated-dependencies:
- dependency-name: pipenv
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* Add changelog entry

* Fix hardcoded pipenv version in tests

* Update test assertions for new pipenv deprecation warning

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Ed Morley <501702+edmorley@users.noreply.github.com>

GUS-W-13771288.

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 - Updated pip from 23.1.2 to 23.2. ([#1465](https://github.com/heroku/heroku-buildpack-python/pull/1465))
 - Updated setuptools from 67.8.0 to 68.0.0. ([#1467](https://github.com/heroku/heroku-buildpack-python/pull/1467))
+- Updated pipenv from 2023.2.4 to 2023.7.11. ([#1468](https://github.com/heroku/heroku-buildpack-python/pull/1468))
 - Update the Python 3.7 deprecation message to reflect that it has now reached end-of-life. ([#1460](https://github.com/heroku/heroku-buildpack-python/pull/1460))
 
 ## v233 (2023-06-07)

requirements/pipenv.txt

@@ -1 +1 @@
-pipenv==2023.2.4
+pipenv==2023.7.11

spec/hatchet/pipenv_spec.rb

@@ -2,8 +2,6 @@
 
 require_relative '../spec_helper'
 
-PIPENV_VERSION = '2023.2.4'
-
 RSpec.shared_examples 'builds using Pipenv with the requested Python version' do |python_version|
   it "builds with Python #{python_version}" do
     app.deploy do |app|
@@ -47,6 +45,7 @@
           remote: -----> Installing python-#{DEFAULT_PYTHON_VERSION}
           remote: -----> Installing pip #{PIP_VERSION}, setuptools #{SETUPTOOLS_VERSION} and wheel #{WHEEL_VERSION}
           remote: -----> Installing dependencies with Pipenv #{PIPENV_VERSION}
+          remote:        The flag --skip-lock has been deprecated for removal.  Without running the lock resolver it is not possible to manage multiple package indexes.  Additionally it bypasses the build consistency guarantees provided by maintaining a lock file.
           remote:        Installing dependencies from Pipfile...
           remote: -----> Installing SQLite3
         OUTPUT

spec/spec_helper.rb

@@ -25,6 +25,7 @@ def get_requirement_version(package_name)
 PIP_VERSION = get_requirement_version('pip')
 SETUPTOOLS_VERSION = get_requirement_version('setuptools')
 WHEEL_VERSION = get_requirement_version('wheel')
+PIPENV_VERSION = get_requirement_version('pipenv')
 
 # Work around the return value for `default_buildpack` changing after deploy:
 # https://github.com/heroku/hatchet/issues/180