refactor: Rename from optimiser to sizer

.github/workflows/ci.yaml

@@ -33,11 +33,11 @@ jobs:
 
       - name: Sanitize Docker credentials
         run: |
-          REGISTRY="${{ forgejo.server_url }}"
+          REGISTRY="${{ secrets.GITHUB_SERVER_URL }}"
           echo "registry=${REGISTRY#https://}" >> "$GITHUB_OUTPUT"
-          ORG="${{ forgejo.repository_owner }}"
+          ORG="${{ github.repository_owner }}"
           echo "org=$(echo "$ORG" | tr '[:upper:]' '[:lower:]')" >> "$GITHUB_OUTPUT"
-        id: sanitize_credentials
+        id: sanitize-credentials
 
       - name: GoReleaser Check
         run: |