chore(release): 1.3.0 [skip ci]

# [1.3.0](https://gitlab.com/to-be-continuous/python/compare/1.2.3...1.3.0) (2021-09-03)

### Features

* add Poetry extras support (PYTHON_POETRY_EXTRAS variable) ([e079e305](https://gitlab.com/to-be-continuous/python/commit/e079e305ddaf508d3105394df3fab1be92d6e38c))

README.md

@@ -11,7 +11,7 @@ In order to include this template in your project, add the following to your `gi
 ```yaml
 include:
   - project: 'to-be-continuous/python'
-    ref: '1.2.3'
+    ref: '1.3.0'
     file: '/templates/gitlab-ci-python.yml'
 ```
 

templates/gitlab-ci-python.yml

@@ -305,7 +305,7 @@ variables:
     fi
   }
 
-  if [[ -z "$TEMPLATE_CHECK_UPDATE_DISABLED" ]]; then check_for_update python "1.2.3"; fi
+  if [[ -z "$TEMPLATE_CHECK_UPDATE_DISABLED" ]]; then check_for_update python "1.3.0"; fi
   unscope_variables
 
   # ENDSCRIPT
@@ -317,7 +317,7 @@ variables:
   image: $PYTHON_IMAGE
   services:
     - name: "$CI_REGISTRY/to-be-continuous/tools/tracking:master"
-      command: ["--service", "python", "1.2.3"]
+      command: ["--service", "python", "1.3.0"]
   # Cache downloaded dependencies and plugins between builds.
   # To keep cache across branches add 'key: "$CI_JOB_NAME"'
   cache: