Rust job is not running the correct versions of the code

See gst-plugins-rs!256 (merged) and https://gitlab.freedesktop.org/slomo/gst-plugins-rs/-/jobs/1460262

The MR is actually changing the code that fails to compile in that job to code that compiles again.

3715 error[E0425]: cannot find function `util_seqnum_next` in crate `gst`
3716    --> gst-plugin-togglerecord/src/togglerecord.rs:114:34
3717     |
3718 114 |             segment_seqnum: gst::util_seqnum_next(),
3719     |                                  ^^^^^^^^^^^^^^^^ not found in `gst`
3720 error[E0425]: cannot find value `SEQNUM_INVALID` in module `gst::event`
3721    --> gst-plugin-closedcaption/src/mcc_parse.rs:115:38
3722     |
3723 115 |             seek_seqnum: gst::event::SEQNUM_INVALID,
3724     |                                      ^^^^^^^^^^^^^^ not found in `gst::event`
3725 error[E0425]: cannot find value `SEQNUM_INVALID` in module `gst::event`
3726    --> gst-plugin-closedcaption/src/mcc_parse.rs:295:48
3727     |
3728 295 |             if self.seek_seqnum != gst::event::SEQNUM_INVALID {
3729     |                                                ^^^^^^^^^^^^^^ not found in `gst::event`
3730 error[E0425]: cannot find value `SEQNUM_INVALID` in module `gst::event`
3731    --> gst-plugin-closedcaption/src/mcc_parse.rs:333:48
3732     |
3733 333 |             if self.seek_seqnum != gst::event::SEQNUM_INVALID {
3734     |                                                ^^^^^^^^^^^^^^ not found in `gst::event`
3735 error[E0425]: cannot find value `SEQNUM_INVALID` in module `gst::event`
3736    --> gst-plugin-closedcaption/src/mcc_parse.rs:817:53
3737     |
3738 817 |                 if state.seek_seqnum != gst::event::SEQNUM_INVALID {
3739     |                                                     ^^^^^^^^^^^^^^ not found in `gst::event`

CC @gdesmott