chore(release): 1.2.3 [skip ci]

## [1.2.3](https://gitlab.com/to-be-continuous/docker/compare/1.2.2...1.2.3) (2021-07-21)

### Bug Fixes

* variable name ([1aed76f2](https://gitlab.com/to-be-continuous/docker/commit/1aed76f287ff27e35233941e35cbac1e8ea9d2ff))

README.md

@@ -9,7 +9,7 @@ In order to include this template in your project, add the following to your `.g
 ```yaml
 include:
   - project: 'to-be-continuous/docker'
-    ref: '1.2.2'
+    ref: '1.2.3'
     file: '/templates/gitlab-ci-docker.yml'
 ```
 
@@ -307,7 +307,7 @@ Here is a `.gitlab-ci.yaml` using an external Docker registry:
 ```yaml
 include:
   - project: 'to-be-continuous/docker'
-    ref: '1.2.2'
+    ref: '1.2.3'
     file: '/templates/gitlab-ci-docker.yml'
 
 variables:
@@ -325,7 +325,7 @@ Here is a `.gitlab-ci.yaml` that builds 2 Docker images from the same project (u
 ```yaml
 include:
   - project: 'to-be-continuous/docker'
-    ref: '1.2.2'
+    ref: '1.2.3'
     file: '/templates/gitlab-ci-docker.yml'
 
 variables:

templates/gitlab-ci-docker.yml

@@ -367,7 +367,7 @@ stages:
     fi
   }
 
-  if [[ -z "$TEMPLATE_CHECK_UPDATE_DISABLED" ]]; then check_for_update docker "1.2.2"; fi
+  if [[ -z "$TEMPLATE_CHECK_UPDATE_DISABLED" ]]; then check_for_update docker "1.2.3"; fi
   init_workspace
 
   # ENDSCRIPT
@@ -375,7 +375,7 @@ stages:
 .docker-base:
   services:
     - name: "$CI_REGISTRY/to-be-continuous/tools/tracking:master"
-      command: ["--service", "docker", "1.2.2"]
+      command: ["--service", "docker", "1.2.3"]
   before_script:
     - *docker-scripts
 
@@ -404,7 +404,7 @@ stages:
     _TRACE: "${TRACE}"
   services:
     - name: "$CI_REGISTRY/to-be-continuous/tools/tracking:master"
-      command: ["--service", "docker", "1.2.2"]
+      command: ["--service", "docker", "1.2.3"]
     - name: $DOCKER_DIND_IMAGE
       alias: docker
       command: