chore: fix build with constraints (#406)

* chore: fix build with constraints

* fix: disable cache

Author: Gu1nness

.github/workflows/ci.yaml

@@ -155,6 +155,7 @@ jobs:
     uses: canonical/data-platform-workflows/.github/workflows/[email protected]
     with:
       path-to-charm-directory: ${{ matrix.path }}
+      cache: false
 
   integration-test:
     name: Integration test charm

charmcraft.yaml

@@ -51,6 +51,8 @@ parts:
     after:
       - poetry-deps
     poetry-export-extra-args: ['--only', 'main,charm-libs']
+    build-environment:
+      - PIP_CONSTRAINT: constraints.txt # Workaround for typing-extensions / pydantic-core incompatibility
     build-packages:
       - libffi-dev  # Needed to build Python dependencies with Rust from source
       - libssl-dev  # Needed to build Python dependencies with Rust from source

constraints.txt

@@ -0,0 +1 @@
+typing-extensions < 4.14; python_version >= "3.10"