Update Auto DevOps docker versions to 20.x

Mainly a routine update. Only noteworthy chagne is that due to changes
in Docker 20.x, we must now pass the `--tls=false` flag for
compatibility with runners that do not have configured a volume for
sharing the the TLS certificate between the docker-in-docker service
container and the job container.

See https://gitlab.com/gitlab-org/gitlab/-/issues/328208

Changelog: changed

lib/gitlab/ci/templates/Jobs/Browser-Performance-Testing.gitlab-ci.yml

@@ -2,7 +2,7 @@
 
 browser_performance:
   stage: performance
-  image: docker:19.03.12
+  image: docker:20.10.12
   allow_failure: true
   variables:
     DOCKER_TLS_CERTDIR: ""
@@ -10,7 +10,8 @@ browser_performance:
     SITESPEED_VERSION: 14.1.0
     SITESPEED_OPTIONS: ''
   services:
-    - docker:19.03.12-dind
+    - name: 'docker:20.10.12-dind'
+      command: ['--tls=false', '--host=tcp://0.0.0.0:2375']
   script:
     - |
       if ! docker info &>/dev/null; then

lib/gitlab/ci/templates/Jobs/Browser-Performance-Testing.latest.gitlab-ci.yml

@@ -2,7 +2,7 @@
 
 browser_performance:
   stage: performance
-  image: docker:19.03.12
+  image: docker:20.10.12
   allow_failure: true
   variables:
     DOCKER_TLS_CERTDIR: ""
@@ -10,7 +10,8 @@ browser_performance:
     SITESPEED_VERSION: 14.1.0
     SITESPEED_OPTIONS: ''
   services:
-    - docker:19.03.12-dind
+    - name: 'docker:20.10.12-dind'
+      command: ['--tls=false', '--host=tcp://0.0.0.0:2375']
   script:
     - |
       if ! docker info &>/dev/null; then

lib/gitlab/ci/templates/Jobs/Code-Quality.gitlab-ci.yml

 code_quality:
   stage: test
-  image: docker:19.03.12
+  image: docker:20.10.12
   allow_failure: true
   services:
-    - docker:19.03.12-dind
+    - name: 'docker:20.10.12-dind'
+      command: ['--tls=false', '--host=tcp://0.0.0.0:2375']
   variables:
     DOCKER_DRIVER: overlay2
     DOCKER_TLS_CERTDIR: ""

lib/gitlab/ci/templates/Jobs/Load-Performance-Testing.gitlab-ci.yml

 load_performance:
   stage: performance
-  image: docker:19.03.11
+  image: docker:20.10.12
   allow_failure: true
   variables:
     DOCKER_TLS_CERTDIR: ""
@@ -10,7 +10,8 @@ load_performance:
     K6_OPTIONS: ''
     K6_DOCKER_OPTIONS: ''
   services:
-    - docker:19.03.11-dind
+    - name: 'docker:20.10.12-dind'
+      command: ['--tls=false', '--host=tcp://0.0.0.0:2375']
   script:
     - |
       if ! docker info &>/dev/null; then