Update docker-pi-hole-base.yml

Remove Bullseye as it is EOL and no longer builds

Signed-off-by: Adam Warner <me@adamwarner.co.uk>

Author: PromoFaux

.github/workflows/docker-pi-hole-base.yml

@@ -21,8 +21,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        job:
-          - { DEBIAN_VERSION: bullseye-slim, PLATFORMS: 'linux/amd64, linux/arm64, linux/386, linux/arm/v7, linux/arm/v6, linux/ppc64le' }
+        job:          
           - { DEBIAN_VERSION: bookworm-slim, PLATFORMS: 'linux/amd64, linux/arm64, linux/386, linux/arm/v7, linux/arm/v6, linux/ppc64le' }
     name: ${{ matrix.job.DEBIAN_VERSION }}
     steps: