chore: bump github.com/pion/webrtc/v3 from 3.1.18 to 3.1.19 (#122)

Bumps [github.com/pion/webrtc/v3](https://github.com/pion/webrtc) from 3.1.18 to 3.1.19.
- [Release notes](https://github.com/pion/webrtc/releases)
- [Commits](https://github.com/pion/webrtc/compare/v3.1.18...v3.1.19)

---
updated-dependencies:
- dependency-name: github.com/pion/webrtc/v3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -25,7 +25,7 @@ require (
 	github.com/pion/datachannel v1.5.2
 	github.com/pion/logging v0.2.2
 	github.com/pion/transport v0.13.0
-	github.com/pion/webrtc/v3 v3.1.18
+	github.com/pion/webrtc/v3 v3.1.19
 	github.com/spf13/cobra v1.3.0
 	github.com/stretchr/testify v1.7.0
 	github.com/unrolled/secure v1.0.9
@@ -80,7 +80,7 @@ require (
 	github.com/opencontainers/image-spec v1.0.2 // indirect
 	github.com/opencontainers/runc v1.1.0 // indirect
 	github.com/pion/dtls/v2 v2.1.1 // indirect
-	github.com/pion/ice/v2 v2.1.19 // indirect
+	github.com/pion/ice/v2 v2.1.20 // indirect
 	github.com/pion/interceptor v0.1.7 // indirect
 	github.com/pion/mdns v0.0.5 // indirect
 	github.com/pion/randutil v0.1.0 // indirect