ci(release): use Python venv in release job

.gitlab-ci.yml

@@ -114,9 +114,11 @@ release:
   image: registry.gitlab.com/gitlab-org/release-cli:latest
   needs: ["test", "build-package"]
   before_script:
-    - apk add --no-cache git python3 py3-pip
-    - python3 -m pip install setuptools_scm
+    - apk add --no-cache git python3 py3-virtualenv
+    - python3 -m virtualenv venv
+    - source venv/bin/activate
   script:
+    - pip install setuptools_scm
     - |
       # Get version from setuptools_scm
       VERSION=$(python3 -c "from setuptools_scm import get_version; print(get_version())")