add clean workflow

Author: matthieugouel

.github/workflows/clean.yml

@@ -0,0 +1,19 @@
+name: Clean Packages
+
+on:
+  schedule:
+    - cron: '0 0 * * *'
+
+jobs:
+  clean-packages:
+    permissions:
+      packages: write
+
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/delete-package-versions@v5
+        with:
+          package-name: ${{ github.event.repository.name }}
+          package-type: 'container'
+          min-versions-to-keep: 20
+          ignore-versions: '^main|v\d+.\d+.\d+$'

LICENSE

@@ -18,4 +18,4 @@ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+SOFTWARE.

bird/Dockerfile

@@ -45,4 +45,4 @@ COPY --from=builder /usr/sbin/bird* /usr/sbin/
 COPY --from=builder /etc/bird/ /etc/bird/
 
 EXPOSE 179/tcp
-CMD ["bird", "-f", "-R"]
+CMD ["bird", "-f", "-R"]

bird/README.md

@@ -1,7 +1,7 @@
 # Bird
 
-This Dockerfile is heavilly inspired by https://github.com/akafeng/docker-bird (Apache License 2.0). 
+This Dockerfile is heavilly inspired by https://github.com/akafeng/docker-bird (Apache License 2.0).
 Thanks @akafeng!
 
-The biggest difference is the `BIRD_PROTOCOLS` arg which allow to define which protocols to use. 
-You can use `all` as a default, but in this case alpha-released protocols like `bmp` won't be compiled.
+The biggest difference is the `BIRD_PROTOCOLS` arg which allow to define which protocols to use.
+You can use `all` as a default, but in this case alpha-released protocols like `bmp` won't be compiled.

renovate.json

@@ -3,7 +3,7 @@
   "extends": [
     "config:recommended"
   ],
-  
+
   "ignoreTests": true,
   "packageRules": [
     {