beaker-tests: Temporarily build hello from F43

The `main` variant (Rawhide) uses a locally created `make dist` tarball,
to work-around the current FTBFS against the newest GCC:

https://src.fedoraproject.org/rpms/hello/c/af27df4609302190668b8db4cb85380aab4f7795?branch=rawhide

Waiting for a new GNU Hello release:

https://savannah.gnu.org/bugs/?67961

Author: praiskup

beaker-tests/Sanity/copr-cli-basic-operations/runtest-coprdir.sh

@@ -50,7 +50,7 @@ rlJournalStart
         # second package would be something like `copr-cli` or `copr-backend`.
 
         # This is the dependency (e.g. python-copr)
-        rlRun "curl https://src.fedoraproject.org/rpms/hello/raw/rawhide/f/hello.spec > $tmp/hello-1.spec"
+        rlRun "curl https://src.fedoraproject.org/rpms/hello/raw/f43/f/hello.spec > $tmp/hello-1.spec"
         rlRun "sed -i '1s/^/Epoch: 6\n/' $tmp/hello-1.spec"
         rlRun "copr-cli build $PROJECT:custom:foo $tmp/hello-1.spec"