REGTESTS: Adapt proxy_protocol_random_fail.vtc to match normalized URI too

Now, full URI are reported in logs for H2 requests.
diff --git a/reg-tests/connection/proxy_protocol_random_fail.vtc b/reg-tests/connection/proxy_protocol_random_fail.vtc
index ad4f010..7fafc43 100644
--- a/reg-tests/connection/proxy_protocol_random_fail.vtc
+++ b/reg-tests/connection/proxy_protocol_random_fail.vtc
@@ -19,7 +19,7 @@
     recv
     expect ~ "Connect from .* to ${h1_ssl_addr}:${h1_ssl_port}"
     recv
-    expect ~ "ssl-offload-http/http .* \"POST /[1-8] HTTP/(2\\.0|1\\.1)\""
+    expect ~ "ssl-offload-http/http .* \"POST (https://.*:${h1_ssl_port})?/[1-8] HTTP/(2\\.0|1\\.1)\""
 } -start
 
 haproxy h1 -conf {