copr: Use included spec

For some reason the copr process uses a f39 root, and
we don't have our zstd dependency there.

Hopefully this will the last fix...

Signed-off-by: Colin Walters <[email protected]>

Author: cgwalters

.copr/Makefile

@@ -1,8 +1,8 @@
 srpm:
 	dnf -y install dnf-utils git
-	dnf -y builddep bootc
 	# similar to https://github.com/actions/checkout/issues/760, but for COPR
 	git config --global --add safe.directory '*'
+	dnf -y builddep ./contrib/packaging/bootc.spec
 	cargo install cargo-vendor-filterer
 	cargo xtask package-srpm
 	mv target/*.src.rpm $$outdir