Update module github.com/pion/rtp to v1.8.4

Generated by renovateBot

Author: renovate[bot]

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/gorilla/websocket v1.5.1
 	github.com/notedit/janus-go v0.0.0-20210115013133-fdce1b146d0e
 	github.com/pion/rtcp v1.2.13
-	github.com/pion/rtp v1.8.3
+	github.com/pion/rtp v1.8.4
 	github.com/pion/sdp/v3 v3.0.6
 	github.com/pion/webrtc/v3 v3.2.24
 	gocv.io/x/gocv v0.35.0

go.sum

@@ -81,8 +81,9 @@ github.com/pion/rtcp v1.2.12/go.mod h1:sn6qjxvnwyAkkPzPULIbVqSKI5Dv54Rv7VG0kNxh9
 github.com/pion/rtcp v1.2.13 h1:+EQijuisKwm/8VBs8nWllr0bIndR7Lf7cZG200mpbNo=
 github.com/pion/rtcp v1.2.13/go.mod h1:sn6qjxvnwyAkkPzPULIbVqSKI5Dv54Rv7VG0kNxh9L4=
 github.com/pion/rtp v1.8.2/go.mod h1:pBGHaFt/yW7bf1jjWAoUjpSNoDnw98KTMg+jWWvziqU=
-github.com/pion/rtp v1.8.3 h1:VEHxqzSVQxCkKDSHro5/4IUUG1ea+MFdqR2R3xSpNU8=
 github.com/pion/rtp v1.8.3/go.mod h1:pBGHaFt/yW7bf1jjWAoUjpSNoDnw98KTMg+jWWvziqU=
+github.com/pion/rtp v1.8.4 h1:VqNGMNjMDMy9y0d+h+0dfjiWVKUEDQvA963jhJwu200=
+github.com/pion/rtp v1.8.4/go.mod h1:pBGHaFt/yW7bf1jjWAoUjpSNoDnw98KTMg+jWWvziqU=
 github.com/pion/sctp v1.8.5/go.mod h1:SUFFfDpViyKejTAdwD1d/HQsCu+V/40cCs2nZIvC3s0=
 github.com/pion/sctp v1.8.8 h1:5EdnnKI4gpyR1a1TwbiS/wxEgcUWBHsc7ILAjARJB+U=
 github.com/pion/sctp v1.8.8/go.mod h1:igF9nZBrjh5AtmKc7U30jXltsFHicFCXSmWA2GWRaWs=