chore(release): 3.1.0 [skip ci]

# [3.1.0](https://gitlab.com/to-be-continuous/docker/compare/3.0.0...3.1.0) (2022-09-20)

### Features

* add custom DOCKER_CONFIG_FILE var ([3201240e](https://gitlab.com/to-be-continuous/docker/commit/3201240e9437d7602779fb33252e8dce7e028257))

CHANGELOG.md

+# [3.1.0](https://gitlab.com/to-be-continuous/docker/compare/3.0.0...3.1.0) (2022-09-20)
+
+
+### Features
+
+* add custom DOCKER_CONFIG_FILE var ([3201240](https://gitlab.com/to-be-continuous/docker/commit/3201240e9437d7602779fb33252e8dce7e028257))
+
 # [3.0.0](https://gitlab.com/to-be-continuous/docker/compare/2.7.1...3.0.0) (2022-08-05)
 
 

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: '3.0.0'
+    ref: '3.1.0'
     file: '/templates/gitlab-ci-docker.yml'
 ```
 
@@ -423,7 +423,7 @@ Here is a `.gitlab-ci.yaml` using an external Docker registry:
 ```yaml
 include:
   - project: 'to-be-continuous/docker'
-    ref: '3.0.0'
+    ref: '3.1.0'
     file: '/templates/gitlab-ci-docker.yml'
 
 variables:
@@ -441,7 +441,7 @@ Here is a `.gitlab-ci.yaml` that builds 2 Docker images from the same project (u
 ```yaml
 include:
   - project: 'to-be-continuous/docker'
-    ref: '3.0.0'
+    ref: '3.1.0'
     file: '/templates/gitlab-ci-docker.yml'
 
 variables:
@@ -497,11 +497,11 @@ With:
 include:
   # main template
   - project: 'to-be-continuous/docker'
-    ref: '3.0.0'
+    ref: '3.1.0'
     file: '/templates/gitlab-ci-docker.yml'
   # Vault variant
   - project: 'to-be-continuous/docker'
-    ref: '3.0.0'
+    ref: '3.1.0'
     file: '/templates/gitlab-ci-docker-vault.yml'
 
 variables:

templates/gitlab-ci-docker-vault.yml

@@ -9,6 +9,6 @@ variables:
 .docker-base:
   services:
     - name: "$TBC_TRACKING_IMAGE"
-      command: ["--service", "docker", "3.0.0"]
+      command: ["--service", "docker", "3.1.0"]
     - name: "$CI_REGISTRY/to-be-continuous/tools/vault-secrets-provider:master"
       alias: "vault-secrets-provider"

templates/gitlab-ci-docker.yml

@@ -408,7 +408,7 @@ stages:
 .docker-base:
   services:
     - name: "$TBC_TRACKING_IMAGE"
-      command: ["--service", "docker", "3.0.0"]
+      command: ["--service", "docker", "3.1.0"]
   before_script:
     - *docker-scripts
 
@@ -437,7 +437,7 @@ stages:
     _TRACE: "${TRACE}"
   services:
     - name: "$TBC_TRACKING_IMAGE"
-      command: ["--service", "docker", "3.0.0"]
+      command: ["--service", "docker", "3.1.0"]
     - name: $DOCKER_DIND_IMAGE
       alias: docker
       command: