threadshare: ts-jitterbuffer emits request-pt-map without declaring

An issue was found with error log: "Emitting 'request-pt-map': Signal 'request-pt-map' of type 'RsTsJitterBuffer' not found"

0:00:26.271047760 29741 0x7f60d0001e00 LOG          ts-jitterbuffer generic/threadshare/src/jitterbuffer/imp.rs:344:gstthreadshare::jitterbuffer::imp:<RTP_jitter_buffer_1_2> Storing buffer, seq: 7919, rtptime: 1713120, pt: 101
0:00:26.271061470 29741 0x7f60d0001e00 DEBUG        ts-jitterbuffer generic/threadshare/src/jitterbuffer/imp.rs:377:gstthreadshare::jitterbuffer::imp:<RTP_jitter_buffer_1_2:sink> New payload type: 101
0:00:26.271074817 29741 0x7f60d0001e00 TRACE        GST_REFCOUNTING gstminiobject.c:466:gst_mini_object_ref: 0x7f60d0017800 ref 2->3
0:00:26.271100783 29741 0x7f60d0001e00 DEBUG               GST_CAPS gstpad.c:2733:gst_pad_get_current_caps:<RTP_jitter_buffer_1_2:sink> get current pad caps application/x-rtp, media=(string)audio, clock-rate=(int)8000, encoding-name=(string)G729, payload=(int)18
0:00:26.271130238 29741 0x7f60d0001e00 DEBUG        ts-jitterbuffer generic/threadshare/src/jitterbuffer/imp.rs:184:gstthreadshare::jitterbuffer::imp:<RTP_jitter_buffer_1_2> Parsing Caps("application/x-rtp, media=(string)audio, clock-rate=(int)8000, encoding-name=(string)G729, payload=(int)18")
0:00:26.271148752 29741 0x7f60d0001e00 DEBUG        ts-jitterbuffer generic/threadshare/src/jitterbuffer/imp.rs:192:gstthreadshare::jitterbuffer::imp:<RTP_jitter_buffer_1_2> Caps 'payload' (18) doesn't match payload type (101)
0:00:26.271159809 29741 0x7f60d0001e00 TRACE        GST_REFCOUNTING gstminiobject.c:648:gst_mini_object_unref: 0x7f60d0017800 unref 3->2
0:00:26.271188718 29741 0x7f60d0001e00 ERROR        ts-jitterbuffer generic/threadshare/src/jitterbuffer/imp.rs:393:gstthreadshare::jitterbuffer::imp:<RTP_jitter_buffer_1_2:sink> Emitting 'request-pt-map': Signal 'request-pt-map' of type 'RsTsJitterBuffer' not found

The source code of the jitterbuffer shows that it not declare this "request-pt-map" signal yet. https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/blob/main/generic/threadshare/src/jitterbuffer/imp.rs#L1409