build(deps): bump github.com/gofiber/adaptor/v2 from 2.1.20 to 2.1.21

Bumps [github.com/gofiber/adaptor/v2](https://github.com/gofiber/adaptor) from 2.1.20 to 2.1.21.
- [Release notes](https://github.com/gofiber/adaptor/releases)
- [Commits](gofiber/adaptor@v2.1.20...v2.1.21)

---
updated-dependencies:
- dependency-name: github.com/gofiber/adaptor/v2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

go.mod

@@ -3,7 +3,7 @@ module github.com/ansrivas/fiberprometheus/v2
 go 1.16
 
 require (
-	github.com/gofiber/adaptor/v2 v2.1.20
+	github.com/gofiber/adaptor/v2 v2.1.21
 	github.com/gofiber/fiber/v2 v2.30.0
 	github.com/prometheus/client_golang v1.12.1
 )

go.sum

@@ -69,9 +69,8 @@ github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
-github.com/gofiber/adaptor/v2 v2.1.20 h1:UopL1v7nQqqVUYcTeyIEAE5MUS+25gQnm2j3HI8+WZA=
-github.com/gofiber/adaptor/v2 v2.1.20/go.mod h1:TscH1Bmug7Hyz3mjUG86SGug5RwIuIsWJOJYndFAHWE=
-github.com/gofiber/fiber/v2 v2.29.0/go.mod h1:1Ega6O199a3Y7yDGuM9FyXDPYQfv+7/y48wl6WCwUF4=
+github.com/gofiber/adaptor/v2 v2.1.21 h1:NILSZqYwl4dbYrlpxGxwjaXEKxQx29CAzT4L0rVn2cg=
+github.com/gofiber/adaptor/v2 v2.1.21/go.mod h1:3ZODPoqlqv/5b5jiN1Dyzus9jTspRshrb6FRl3poXX0=
 github.com/gofiber/fiber/v2 v2.30.0 h1:R928kgJICQkcfIzAjMIQ+U0uOpa0+vTCZLLODeo4M14=
 github.com/gofiber/fiber/v2 v2.30.0/go.mod h1:1Ega6O199a3Y7yDGuM9FyXDPYQfv+7/y48wl6WCwUF4=
 github.com/gofiber/utils v0.1.2 h1:1SH2YEz4RlNS0tJlMJ0bGwO0JkqPqvq6TbHK9tXZKtk=