### Description SIP OPTION relayed using `t_forward_nonack()` not being URI decoded

<!-- Explain what you did, what you expected to happen, and what actually happened. -->

### Troubleshooting

#### Reproduction

register with PATH and use SIP OPTION keep alive or simply send relay a SIP OPTIONS with a route.

#### Debugging Data

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```#1 0x00007fa3067a998f in t_forward_nonack (t=0x7fa3246fce88, p_msg=0x7fa3885aa1c0, proxy=0x0, proto=0) at t_fwd.c:1729 1729 raise(SIGSEGV); (gdb) l 1724 ser_error=MIN_int(lowest_ret, E_CFG); 1725 return -1; 1726 } 1727 if(lowest_ret!=E_CFG) { 1728 LM_ERR("failure to add branches\n"); 1729 raise(SIGSEGV); << raising exception to get the coredump 1730 } 1731 ser_error=lowest_ret; 1732 return lowest_ret; 1733 }

```

#### Log Messages

``` 4(34) ERROR: tm [ut.h:245]: uri2dst2(): bad_uri: sip:247.25.169.51:52307%3Btransport%3Dtls 4(34) ERROR: tm [t_fwd.c:1728]: t_forward_nonack(): failure to add branches ```

### Possible Solutions

This patch can fix the problem from the routing script : ``` if (is_method("OPTIONS") && uri!=myself) { $var(path_uri) = $(hdr(Route){re.subst,/<(.*)>/\1/}); if (defined $(var(path_uri){uri.params}) && $(var(path_uri){uri.params}{param.value,received}) != "") { $var(received) = $(var(path_uri){uri.params}{param.value,received}); if ($var(received) =~ "sip:.*:.*") { $du = $var(received); $avp(received) = $(var(path_uri){uri.params}{param.value,received}); avp_subst("$avp(received)", "/%3Btransport%3Dtcp/;transport=tcp/ig"); if ($avp(received) =~ "sip:.*:.*") { $du = $avp(received); } } t_relay(); } ```

### Additional Information

tested on 5.3.2, something changed during 5.3.0.dev, I will try to pin point the commit