Bump github.com/gin-gonic/gin from 1.6.3 to 1.9.1

Bumps [github.com/gin-gonic/gin](https://github.com/gin-gonic/gin) from 1.6.3 to 1.9.1.
- [Release notes](https://github.com/gin-gonic/gin/releases)
- [Changelog](https://github.com/gin-gonic/gin/blob/master/CHANGELOG.md)
- [Commits](gin-gonic/gin@v1.6.3...v1.9.1)

---
updated-dependencies:
- dependency-name: github.com/gin-gonic/gin
  dependency-type: direct:production
...

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

go.mod

@@ -7,15 +7,14 @@ require (
 	github.com/dgraph-io/badger/v3 v3.2011.1
 	github.com/dgryski/go-farm v0.0.0-20200201041132-a6ae2369ad13 // indirect
 	github.com/frankban/quicktest v1.4.0 // indirect
-	github.com/gin-gonic/gin v1.6.3
+	github.com/gin-gonic/gin v1.9.1
 	github.com/go-git/go-git/v5 v5.1.0
 	github.com/hashicorp/go-hclog v0.12.0 // indirect
 	github.com/hashicorp/go-multierror v1.1.0 // indirect
 	github.com/hashicorp/go-retryablehttp v0.6.6 // indirect
 	github.com/hashicorp/go-rootcerts v1.0.2 // indirect
 	github.com/hashicorp/vault/api v1.0.5-0.20190730042357-746c0b111519
 	github.com/mitchellh/mapstructure v1.3.0
-	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/orcaman/concurrent-map v0.0.0-20190826125027-8c72a8bb44f6
 	github.com/pierrec/lz4 v2.5.2+incompatible // indirect
 	github.com/pyroscope-io/pyroscope v0.0.28
@@ -24,7 +23,7 @@ require (
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.5
 	github.com/spf13/viper v1.6.3
-	github.com/stretchr/testify v1.5.1
+	github.com/stretchr/testify v1.8.3
 	go.uber.org/multierr v1.6.0 // indirect
 	go.uber.org/zap v1.16.0
 	golang.org/x/time v0.0.0-20200416051211-89c76fbcd5d1 // indirect