Update docker:20.10.6-dind Docker digest to 2636ec3

This MR contains the following updates:

Package	Type	Update	Change
docker	service-image	digest	dca3d73 -> 2636ec3

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.gitlab-ci.yml

@@ -7,7 +7,7 @@ build:
   stage: build
   image: docker:20.10.6@sha256:97aab4c534471239ce200d498a8157c5852189251a4a77efcdcd36e23a79bfb5
   services:
-    - docker:20.10.6-dind@sha256:dca3d73becf3c4dad03890df5f4fe0e8751d4a5da809e285804f224a2b2667ca
+    - docker:20.10.6-dind@sha256:2636ec38c4567671b24f35683a66d1204bbeed208873a2a11c64dd592742b97a
   tags:
     - dind
   script:
@@ -27,7 +27,7 @@ test:
   stage: test
   image: docker:20.10.6@sha256:97aab4c534471239ce200d498a8157c5852189251a4a77efcdcd36e23a79bfb5
   services:
-    - docker:20.10.6-dind@sha256:dca3d73becf3c4dad03890df5f4fe0e8751d4a5da809e285804f224a2b2667ca
+    - docker:20.10.6-dind@sha256:2636ec38c4567671b24f35683a66d1204bbeed208873a2a11c64dd592742b97a
   tags:
     - dind
 
@@ -39,7 +39,7 @@ push:
   stage: push
   image: docker:20.10.6@sha256:97aab4c534471239ce200d498a8157c5852189251a4a77efcdcd36e23a79bfb5
   services:
-    - docker:20.10.6-dind@sha256:dca3d73becf3c4dad03890df5f4fe0e8751d4a5da809e285804f224a2b2667ca
+    - docker:20.10.6-dind@sha256:2636ec38c4567671b24f35683a66d1204bbeed208873a2a11c64dd592742b97a
   tags:
     - dind
   only: