bump version

[alfredh]

No description provided.

[sreimers]

SOVERSION needs a bump too (removed function):

Run abidiff old/build/libre.so current/build/libre.so
Functions changes summary: 1 Removed, 0 Changed, [4](https://github.com/baresip/re/actions/runs/9079894989/job/24950077925#step:8:5) Added functions
Variables changes summary: 0 Removed, 0 Changed, 0 Added variable

1 Removed function:

  [D] 'function int dbg_logfile_set(const char*)'    {dbg_logfile_set}

4 Added functions:

  [A] 'function int h2[6](https://github.com/baresip/re/actions/runs/9079894989/job/24950077925#step:8:7)4_stap_decode_annexb_long(mbuf*, mbuf*)'    {h264_stap_decode_annexb_long}
  [A] 'function int http_client_disable_verify_server(http_cli*)'    {http_client_disable_verify_server}
  [A] 'function int pl_strncmp(const pl*, const char*, size_t)'    {pl_strncmp}
  [A] 'function bool sip_request_provrecv(const sip_request*)'    {sip_request_provrecv}