chore: Definitively remove nexus

Author: PixNyb

.github/workflows/deploy.yml

@@ -131,13 +131,6 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Login to Nexus Docker Registry
-        uses: docker/login-action@v3
-        with:
-          registry: nexus.roelc.dev
-          username: ${{ vars.NEXUS_USERNAME }}
-          password: ${{ secrets.NEXUS_PASSWORD }}
-
       - name: Build and push
         uses: docker/build-push-action@v5
         with:
@@ -148,6 +141,5 @@ jobs:
           tags: |
             ${{ needs.setup.outputs.lowercase }}/authentication-proxy:${{ needs.setup.outputs.tag_name }}
             ghcr.io/${{ needs.setup.outputs.lowercase }}/authentication-proxy:${{ needs.setup.outputs.tag_name }}
-            nexus.roelc.dev/authentication-proxy:${{ needs.setup.outputs.tag_name }}
           cache-from: type=gha
           cache-to: type=gha,mode=max