Remove space for containers.

.github/workflows/ci-pr.yml

@@ -3,21 +3,19 @@ name: CI PRs
 on:
   pull_request:
 
-env:
-  MAVEN_THREADS: '-T 1'
-
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
     # cache maven repo
-    - uses: actions/cache@v3
+    - uses: jlumbroso/free-disk-space@main
       with:
-        path: ~/.m2/repository
-        key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
-        restore-keys: |
-          ${{ runner.os }}-m2-
+        tool-cache: false
+        dotnet: false
+        docker-images: false
+        swap-storage: false
+        large-packages: false
     # jdk8
     - uses: actions/setup-java@v3
       with:
@@ -48,10 +46,6 @@ jobs:
         name: Unit Tests
         path: '**/surefire-reports/*.xml'
         retention-days: 3
-    # clean m2 cache
-    - name: Clean cache
-      run: |
-        find ~/.m2/repository -type d -name '*SNAPSHOT' | xargs rm -fr
   scan:
     runs-on: ubuntu-latest
     steps: