fix(actions): install yamllint through pip to fix alpine package issues

.gitea/workflows/test-pr.yml

@@ -18,9 +18,12 @@ jobs:
     container: alpine/helm:4.1.3
     steps:
       - name: install tools
-        run: |
+        run: | # Hacky way of installing yamllint due to previous action failures, likely not needed after dependency fix is made on Alpine's side
           apk update
-          apk add --update bash make nodejs npm ncurses
+          apk add --update bash make nodejs npm ncurses python3 py3-pip
+          python3 -m venv /opt/venv
+          /opt/venv/bin/pip install yamllint
+          ln -s /opt/venv/bin/yamllint /usr/local/bin/yamllint
       - uses: actions/checkout@v6
       - name: install chart dependencies
         run: helm dependency build