fix build failure related to disk usage (#1372)

.github/workflows/composites/clean-space/action.yaml

@@ -0,0 +1,19 @@
+name: clean space
+description: clean space
+runs:
+  using: "composite"
+  steps:
+    - name: apt-update
+      shell: bash
+      run: |
+        sudo apt-get update
+
+    - name: Free Disk Space
+      uses: jlumbroso/free-disk-space@main
+      with:
+        tool-cache: true
+        android: true
+        dotnet: true
+        haskell: true
+        large-packages: true
+        swap-storage: true

.github/workflows/composites/fabric8-istio-integration-test/action.yaml

@@ -12,6 +12,7 @@ runs:
         cd ..
         
         docker load -i /tmp/docker/images/spring-cloud-kubernetes-fabric8-istio-it.tar
+        rm -fr /tmp/docker/images/spring-cloud-kubernetes-fabric8-istio-it.tar
         cd spring-cloud-kubernetes-integration-tests/spring-cloud-kubernetes-fabric8-istio-it/
         ../.././mvnw clean install -Dskip.build.image=true
         cd ../..

.github/workflows/maven.yaml

@@ -16,6 +16,9 @@ jobs:
       - name: checkout project
         uses: actions/checkout@v2
 
+      - name: clean space
+        uses: ./.github/workflows/composites/clean-space
+
       - name: set env variables
         uses: ./.github/workflows/composites/env-variables
 
@@ -111,6 +114,9 @@ jobs:
       - name: checkout project
         uses: actions/checkout@v2
 
+      - name: clean space
+        uses: ./.github/workflows/composites/clean-space
+
       - name: set env variables
         uses: ./.github/workflows/composites/env-variables