Bump github.com/gin-gonic/gin from 1.7.0 to 1.7.7 (#185)

Bumps [github.com/gin-gonic/gin](https://github.com/gin-gonic/gin) from 1.7.0 to 1.7.7.
- [Release notes](https://github.com/gin-gonic/gin/releases)
- [Changelog](https://github.com/gin-gonic/gin/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gin-gonic/gin/compare/v1.7.0...v1.7.7)

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

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go.mod

@@ -15,7 +15,7 @@ require (
 	github.com/dgraph-io/badger/v2 v2.2007.2
 	github.com/docker/go-units v0.4.0
 	github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568 // indirect
-	github.com/gin-gonic/gin v1.7.0
+	github.com/gin-gonic/gin v1.7.7
 	github.com/go-redis/redis/v8 v8.3.0
 	github.com/gomodule/redigo v1.8.2 // indirect
 	github.com/imdario/mergo v0.3.9