chore: add free-disk step for docker build

.github/workflows/docker.yml

@@ -25,6 +25,21 @@ jobs:
       id-token: write
 
     steps:
+      - name: Free Disk Space (Ubuntu)
+        uses: jlumbroso/free-disk-space@main
+        with:
+          # this might remove tools that are actually needed,
+          # if set to "true" but frees about 6 GB
+          tool-cache: true
+
+          # all of these default to true, but feel free to set to
+          # "false" if necessary for your workflow
+          android: true
+          dotnet: true
+          haskell: true
+          large-packages: false
+          swap-storage: true
+
       - name: Checkout repository
         uses: actions/checkout@v3
         with: