sig-proxy test: bump timeout

Bump the timeout waiting for the container to process the signal.
The comparatively short timeout is most likely responsible for
flakes in gating tests.

Fixes: containers#16091
Signed-off-by: Valentin Rothberg <[email protected]>

Author: vrothberg

test/system/032-sig-proxy.bats

@@ -24,7 +24,7 @@ load helpers
 
     # Signal, and wait for container to exit
     kill -INT $kidpid
-    local timeout=5
+    local timeout=10
     while :;do
           sleep 0.5
           run_podman logs foo