With valkey-io#1401, we introduced additional filters to CLIENT LIST/KILL
subcommand. The intended behavior was to pick the last value of the
filter. However, we introduced memory leak for all the preceding
filters.

Before this change:
```
> CLIENT LIST IP 127.0.0.1 IP 127.0.0.1
id=4 addr=127.0.0.1:37866 laddr=127.0.0.1:6379 fd=10 name= age=0 idle=0 flags=N capa= db=0 sub=0 psub=0 ssub=0 multi=-1 watch=0 qbuf=0 qbuf-free=0 argv-mem=21 multi-mem=0 rbs=16384 rbp=16384 obl=0 oll=0 omem=0 tot-mem=16989 events=r cmd=client|list user=default redir=-1 resp=2 lib-name= lib-ver= tot-net-in=49 tot-net-out=0 tot-cmds=0
```
Leak:
```
Direct leak of 11 byte(s) in 1 object(s) allocated from:
    #0 0x7f2901aa557d in malloc (/lib64/libasan.so.4+0xd857d)
    #1 0x76db76 in ztrymalloc_usable_internal /workplace/harkrisp/valkey/src/zmalloc.c:156
    #2 0x76db76 in zmalloc_usable /workplace/harkrisp/valkey/src/zmalloc.c:200
    #3 0x4c4121 in _sdsnewlen.constprop.230 /workplace/harkrisp/valkey/src/sds.c:113
    #4 0x4dc456 in parseClientFiltersOrReply.constprop.63 /workplace/harkrisp/valkey/src/networking.c:4264
    #5 0x4bb9f7 in clientListCommand /workplace/harkrisp/valkey/src/networking.c:4600
    #6 0x641159 in call /workplace/harkrisp/valkey/src/server.c:3772
    #7 0x6431a6 in processCommand /workplace/harkrisp/valkey/src/server.c:4434
    #8 0x4bfa9b in processCommandAndResetClient /workplace/harkrisp/valkey/src/networking.c:3571
    #9 0x4bfa9b in processInputBuffer /workplace/harkrisp/valkey/src/networking.c:3702
    #10 0x4bffa3 in readQueryFromClient /workplace/harkrisp/valkey/src/networking.c:3812
    #11 0x481015 in callHandler /workplace/harkrisp/valkey/src/connhelpers.h:79
    #12 0x481015 in connSocketEventHandler.lto_priv.394 /workplace/harkrisp/valkey/src/socket.c:301
    #13 0x7d3fb3 in aeProcessEvents /workplace/harkrisp/valkey/src/ae.c:486
    #14 0x7d4d44 in aeMain /workplace/harkrisp/valkey/src/ae.c:543
    #15 0x453925 in main /workplace/harkrisp/valkey/src/server.c:7319
    #16 0x7f2900cd7139 in __libc_start_main (/lib64/libc.so.6+0x21139)
```

Note: For filter ID / NOT-ID we group all the option and perform
filtering whereas for remaining filters we only pick the last filter
option.

---------

Signed-off-by: Harkrishn Patro <harkrisp@amazon.com>