Add runner cleanup (#326)

Author: sebrandon1

.github/workflows/pre-main.yml

@@ -65,6 +65,17 @@ jobs:
       PFLT_DOCKERCONFIG: '/home/runner/.docker/config'
 
     steps:
+      - name: Free Disk Space (Ubuntu)
+        uses: jlumbroso/free-disk-space@main
+        with:
+          tool-cache: false
+          android: true
+          dotnet: true
+          haskell: true
+          large-packages: true
+          docker-images: true
+          swap-storage: true
+
       - name: Set up Go 1.20
         uses: actions/setup-go@v4
         with: