attempt to workaround downstream package testing situation (pyca#7725)

* attempt to workaround downstream package testing situation

.github/workflows/ci.yml

@@ -492,6 +492,23 @@ jobs:
       - run: pip install .
         env:
           CARGO_TARGET_DIR: ${{ format('{0}/src/rust/target/', github.workspace) }}
+      # cryptography main has a version of "(X+1).0.0.dev1" where X is the
+      # most recently released major version. A package used by a downstream
+      # may depend on cryptography <=X. If you use entrypoints stuff, this can
+      # lead to runtime errors due to version incompatibilities. Rename the
+      # dist-info directory to pretend to be an older version to "solve" this.
+      - run: |
+          import json
+          import pkg_resources
+          import shutil
+          import urllib.request
+          
+          d = pkg_resources.get_distribution("cryptography")
+          with urllib.request.urlopen("https://pypi.org/pypi/cryptography/json") as r:
+              latest_version = json.load(r)["info"]["version"]
+          new_path = d.egg_info.replace(d.version, latest_version)
+          shutil.move(d.egg_info, new_path)
+        shell: python
       - run: ./.github/downstream.d/${{ matrix.DOWNSTREAM }}.sh run
 
   docs-linkcheck: