check all git-lfs managed files into the repository

That way one will not be dependent on git-lfs for what ultimately are 6MB of binary files.
I would even have paid for bandwidth, but it seems wrong that bandwidth resets per month
which would leave a lot unused

.gitattributes

@@ -1,4 +1,4 @@
-**/generated-archives/*.tar.xz filter=lfs diff=lfs merge=lfs -text
+**/generated-archives/*.tar.xz filter=lfs-disabled diff=lfs merge=lfs -text
 
 # assure line feeds don't interfere with our working copy hash 
 **/tests/fixtures/**/*.sh text crlf=input	eol=lf

.github/workflows/ci.yml

@@ -80,6 +80,7 @@ jobs:
         if: startsWith(matrix.os, 'windows')
         run: cargo check --all --bins --examples
       - run: |
+          # it should never be a failure not to get the caches, as they can be regenerated.
           git lfs fetch && git lfs checkout || true
       - uses: taiki-e/install-action@v1
         with: