Fix libsolv nightly builds by downloading all current patches

Since we take libsolv specfile from fedora we have to somehow deal with
its patches otherwise the build fails.

We could either drop them or use them.

Since the specfile could be changed in a way that requires the patches
to successfully create an rpm I think it will be more robust to download
and use them.

Author: kontura

.github/workflows/nightly.yml

@@ -49,7 +49,10 @@ jobs:
             specfile_path: libsolv.spec
             actions:
               post-upstream-clone:
+                # Download spec
                 - "wget https://src.fedoraproject.org/rpms/libsolv/raw/main/f/libsolv.spec -O libsolv.spec"
+                # Download patches used in the spec
+                - bash -c "spectool -P libsolv.spec | awk '{print $2}' | xargs -I {} curl -O https://src.fedoraproject.org/rpms/libsolv/raw/rawhide/f/{}"
           EOL
             COMMAND_STRING+=" -c ./packit_libsolv.yaml"
           fi