Run against CI build of ECJ temporarily

.github/workflows/build.yml

@@ -83,10 +83,17 @@ jobs:
         env:
           cache-name: maven-cache
         with:
-          path:
-            ~/.m2
+          path: ~/.m2
           key: build-${{ env.cache-name }}
 
+      ### TODO(ascopes): remove this before merging.
+      - name: Inject development version of ECJ
+        shell: bash
+        run: >-
+            ./scripts/add-development-ecj-to-maven-repository.sh
+            https://ci.eclipse.org/jdt/job/eclipse.jdt.core-Github/job/PR-3446/6/artifact/repository/target/repository/plugins/org.eclipse.jdt.core.compiler.batch_3.41.0.v20241224-1732.jar
+            3.41.0-SNAPSHOT
+
       - name: Compile and run tests
         shell: bash
         run: ./mvnw -B -U clean verify