Fix includes

Due to bug, everything must be referred to remotely.

See https://gitlab.com/gitlab-org/gitlab/-/issues/31971

plugins/default.yml

 include:
-  - local: './templates/variables.yml'
-  - local: './templates/cache.yml'
-  - local: './templates/before_script.yml'
-  - local: './templates/matrix.yml'
+  - remote: https://git.ethitter.com/gitlab/ci/wordpress/-/raw/main/plugins/templates/variables.yml
+  - remote: https://git.ethitter.com/gitlab/ci/wordpress/-/raw/main/plugins/templates/cache.yml
+  - remote: https://git.ethitter.com/gitlab/ci/wordpress/-/raw/main/plugins/templates/before-script.yml
+  - remote: https://git.ethitter.com/gitlab/ci/wordpress/-/raw/main/plugins/templates/matrix.yml