Build and use PyDis image when deploying to Kubernetes

Author: jb3

.github/workflows/deploy.yaml

@@ -55,10 +55,24 @@ jobs:
             ghcr.io/python-discord/snekbox-venv:latest
             ghcr.io/python-discord/snekbox:latest
           cache-to: type=inline
+          load: true
           tags: |
             ghcr.io/python-discord/snekbox:latest
             ghcr.io/python-discord/snekbox:${{ inputs.version }}
 
+      - name: Build PyDis final image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile.pydis
+          push: true
+          cache-from: |
+            ghcr.io/python-discord/snekbox:latest-pydis
+          cache-to: type=inline
+          tags: |
+            ghcr.io/python-discord/snekbox:latest-pydis
+            ghcr.io/python-discord/snekbox:${{ inputs.version }}-pydis
+
       # Deploy to Kubernetes.
       - name: Install kubectl
         uses: azure/setup-kubectl@v4
@@ -74,7 +88,7 @@ jobs:
         with:
           namespace: snekbox
           manifests: deployment.yaml
-          images: 'ghcr.io/python-discord/snekbox:${{ inputs.version }}'
+          images: 'ghcr.io/python-discord/snekbox:${{ inputs.version }}-pydis'
 
       # Push the base image to GHCR, with an inline cache manifest.
       - name: Push base image