gst1-plugings-base: bump version

Bug reports fixed in this release:

      * 693263 : typefinding: MPEG-2 video ES detected as H.263
      * 683504 : playsink: deadlock when disabling subtitles and suboptimal disabling of subtitles
      * 700770 : typefinding: mp3 file mis-detected as h263 video
      * 723597 : tagdemux: Seek event in GST_FORMAT_TIME are converted to BYTES to early
      * 724633 : oggdemux: ignores last page in push mode
      * 724720 : rtspconnection: not possible to disconnect/reconnect read connection in tunneled mode
      * 725313 : rtspconnection: closed() callback is never called in tunneled mode
      * 725644 : typefinding: mp3 file is misdetected as H.263
      * 726642 : rtspconnection: minor memory leak in error handling
      * 727025 : adder: rework the logic to check if eos has to be sent.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>