test/system: run_podman ? needs quoting

Bash will expand a signle ? to a file name which consists of a single
char, and thus if you have a file named "a" in the cwd it will add a as
argument which causes podman a ... to be executed which clearly fails
the test.

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

test/system/030-run.bats

@@ -1638,7 +1638,7 @@ search               | $IMAGE           |
            "$command --authfile=nonexistent-path"
 
         if [[ "$command" != "logout" ]]; then
-           REGISTRY_AUTH_FILE=$bogus run_podman ? $command $args
+           REGISTRY_AUTH_FILE=$bogus run_podman '?' $command $args
            assert "$output" !~ "credential file is not accessible" \
               "$command REGISTRY_AUTH_FILE=nonexistent-path"
 

test/system/130-kill.bats

@@ -114,7 +114,7 @@ load helpers
     run_podman run --rm -d --name $cname $IMAGE top
     run_podman kill $cname
     is "$output" $cname
-    run_podman ? wait $cname
+    run_podman '?' wait $cname
 }
 
 # bats test_tags=ci:parallel