Switch to pipx for uv installation

Signed-off-by: Thomas <[email protected]>

Author: tumaisch

.gitlab-ci.yml

@@ -27,7 +27,7 @@ stages:
 build-python-package:
   stage: build
   before_script:
-    - pip install uv
+    - pipx install uv
   script:
     - tools/build-package.sh
   artifacts:
@@ -38,7 +38,7 @@ build-python-package:
 build-documentation:
   stage: build
   before_script:
-    - pip install uv
+    - pipx install uv
   script:
     - tools/build-docs.sh
   artifacts:
@@ -48,7 +48,7 @@ build-documentation:
 test-python-package:
   stage: test
   before_script:
-    - pip install uv
+    - pipx install uv
   script:
     - tools/test-package.sh
   coverage: '/TOTAL.*\s+(\d+%)$/'
@@ -62,7 +62,7 @@ test-python-package:
 lint-python-package:
   stage: test
   before_script:
-    - pip install uv
+    - pipx install uv
   script:
     - uv run --all-extras flake8 src/python_training_project --format gl-codeclimate --output-file gl-code-quality-report.json
   artifacts:
@@ -79,7 +79,7 @@ additional-mr-checks:
 deploy-python-package:
   stage: deploy
   before_script:
-    - pip install uv
+    - pipx install uv
   variables:
     UV_PUBLISH_URL: ${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/packages/pypi
     UV_PUBLISH_USERNAME: gitlab-ci-token