Fix: Docker CI to use org tokens (#6655)

* update Dockerhub creds to new scheme

* Merge branch 'release-v6.0.1' into fix-docker-ci

Author: antondlr

.github/workflows/docker.yml

@@ -13,8 +13,8 @@ concurrency:
   cancel-in-progress: true
 
 env:
-    DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
-    DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
+    DOCKER_PASSWORD: ${{ secrets.DH_KEY }}
+    DOCKER_USERNAME: ${{ secrets.DH_ORG }}
     # Enable self-hosted runners for the sigp repo only.
     SELF_HOSTED_RUNNERS: ${{ github.repository == 'sigp/lighthouse' }}
 

.github/workflows/release.yml

@@ -10,8 +10,8 @@ concurrency:
   cancel-in-progress: true
 
 env:
-    DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
-    DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
+    DOCKER_PASSWORD: ${{ secrets.DH_KEY }}
+    DOCKER_USERNAME: ${{ secrets.DH_ORG }}
     REPO_NAME: ${{ github.repository_owner }}/lighthouse
     IMAGE_NAME: ${{ github.repository_owner }}/lighthouse
     # Enable self-hosted runners for the sigp repo only.