Adding AlmaLinux test image

.gitlab-ci.yml

-docker_centos_build:
+docker_almalinux_build:
+   stage: build
+   tags:
+     - centos-docker
+   image: 'almalinux:8.5'
+   artifacts:
+     paths:
+       - ./build/src/pdata
+       - ./build/openfpm_numerics/src/numerics
+       - ./openfpm_numerics/test
+   script:
+     - mkdir -p openfpm_dependencies
+     - mkdir /root/.ssh && chmod 700 /root/.ssh
+     - cp id_rsa.pub /root/.ssh/id_rsa.pub && chmod 644 /root/.ssh/id_rsa.pub
+     - cp id_rsa /root/.ssh/id_rsa && chmod 600 /root/.ssh/id_rsa
+     - ssh-keyscan -H git.mpi-cbg.de >> ~/.ssh/known_hosts
+     - ls openfpm_dependencies
+     - echo "cifarm-centos-node" > hostname
+     - ./build.sh $CI_PROJECT_DIR unused pdata 0 $CI_COMMIT_REF_NAME
+     - ls -la build/src/pdata
+   cache:
+     when: always
+     key: $CI_COMMIT_REF_SLUG
+     paths:
+       - openfpm_dependencies/
+
+
+docker_ubuntu_build:
    stage: build
    tags:
      - ubuntu-docker
@@ -27,7 +54,7 @@ docker_centos_build:
      paths:
        - openfpm_dependencies/
 
-docker_centos_run:
+docker_ubuntu_run:
    stage: test
    tags:
      - ubuntu-docker