update CI workflow to install specific version of pyyaml and adjust uumpa-ci-toolbox installation script URL

Author: OriHoch

.github/workflows/ci.yml

@@ -16,10 +16,9 @@ jobs:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         K8S_DEPLOY_KEY: ${{ secrets.KNESSET_DATA_K8S_DEPLOY_KEY }}
       run: |
-        export PIP_USE_PEP517=0
-        pip install --upgrade pip setuptools wheel
-        curl -s https://raw.githubusercontent.com/OriHoch/uumpa-ci-toolbox/b28739781cf844b3494bfa404ced1ff9c0803e05/bin/github_actions_install.sh \
+        curl -s https://raw.githubusercontent.com/OriHoch/uumpa-ci-toolbox/38828d7f1ff3374616c3afc7ffe662ffa6d90b17/bin/github_actions_install.sh \
           | bash -s 65a0704332e63d51f63981dbb25cd83682dc4078 OriHoch/uumpa-ci-toolbox &&\
+        pip install pyyaml==5.4.1 &&\
         uci github actions self-checkout --config-user-name "knesset-data-pipelines-ci" &&\
         uci github actions docker-login &&\
         uci docker build-cache \