ci: Use actions variable for dockerhub user rather than github.actor.

Signed-off-by: Jason Volk <jason@zemos.net>

.github/workflows/main.yml

@@ -46,6 +46,7 @@ jobs:
       complement: ${{vars.COMPLEMENT != 'false'}}
       complement_runner: 'het'
       docker_repo: ${{vars.DOCKER_REPO}}
+      docker_acct: ${{vars.DOCKER_ACCT}}
       release_url: ${{steps.release.outputs.upload_url}}
       pages_url: 'https://matrix-construct.github.io/tuwunel/'
       rust_sdk_integ: ${{vars.RUST_SDK_INTEGRATION != 'false'}}
@@ -297,6 +298,7 @@ jobs:
     uses: ./.github/workflows/publish.yml
     with:
       docker_repo: ${{needs.init.outputs.docker_repo}}
+      docker_acct: ${{needs.init.outputs.docker_acct}}
       release_url: ${{needs.init.outputs.release_url}}
       pages_url: ${{needs.init.outputs.pages_url}}
       cargo_profiles: ${{needs.init.outputs.cargo_profiles}}

.github/workflows/publish.yml

@@ -41,6 +41,9 @@ on:
       docker_repo:
         type: string
         description: DockerHub Repository
+      docker_acct:
+        type: string
+        description: DockerHub account name
       release_url:
         type: string
         description: For release assets
@@ -114,7 +117,7 @@ jobs:
         uses: docker/login-action@v3
         with:
           registry: docker.io
-          username: ${{ github.actor }}
+          username: ${{ inputs.docker_acct }}
           password: ${{ secrets.dockerhub_token }}
 
       - name: Bake
@@ -176,7 +179,7 @@ jobs:
         uses: docker/login-action@v3
         with:
           registry: docker.io
-          username: ${{ github.actor }}
+          username: ${{ inputs.docker_acct }}
           password: ${{ secrets.dockerhub_token }}
 
       - name: Release Branch
@@ -283,7 +286,7 @@ jobs:
         uses: docker/login-action@v3
         with:
           registry: docker.io
-          username: ${{ github.actor }}
+          username: ${{ inputs.docker_acct }}
           password: ${{ secrets.dockerhub_token }}
 
       - name: Push Branch