Try free more disk spaces for flatpak build

.github/workflows/build_all.yml

@@ -125,6 +125,7 @@ jobs:
         - /usr/share/dotnet:/usr/share/dotnet
         - /opt/ghc:/opt/ghc1
         - /usr/local/share/boost:/usr/local/share/boost1
+        - /opt/hostedtoolcache:/opt/hostedtoolcache1
     strategy:
       fail-fast: false
       matrix:
@@ -143,7 +144,7 @@ jobs:
     steps:
     - name: "Remove unneeded stuff to free disk space"
       run:
-        rm -rf /usr/local/lib/android/* /usr/share/dotnet/* /opt/ghc1/* "/usr/local/share/boost1/*"
+        rm -rf /usr/local/lib/android/* /usr/share/dotnet/* /opt/ghc1/* "/usr/local/share/boost1/*" /opt/hostedtoolcache1/*
     - uses: actions/checkout@v5
     - name: Get the version and date
       run: |