Bump github.com/golang/protobuf from 1.5.2 to 1.5.3

Bumps [github.com/golang/protobuf](https://github.com/golang/protobuf) from 1.5.2 to 1.5.3.
- [Release notes](https://github.com/golang/protobuf/releases)
- [Commits](golang/protobuf@v1.5.2...v1.5.3)

---
updated-dependencies:
- dependency-name: github.com/golang/protobuf
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/aws/aws-sdk-go v1.44.229
 	github.com/fluent/fluent-bit-go v0.0.0-20201210173045-3fd1e0486df2
 	github.com/golang/mock v1.6.0
-	github.com/golang/protobuf v1.5.2
+	github.com/golang/protobuf v1.5.3
 	github.com/json-iterator/go v1.1.12
 	github.com/lestrrat-go/strftime v1.0.6
 	github.com/sirupsen/logrus v1.9.0

go.sum

@@ -11,8 +11,8 @@ github.com/fluent/fluent-bit-go v0.0.0-20201210173045-3fd1e0486df2/go.mod h1:L92
 github.com/golang/mock v1.6.0 h1:ErTB+efbowRARo13NNdxyJji2egdxLGQhRaY+DUumQc=
 github.com/golang/mock v1.6.0/go.mod h1:p6yTPP+5HYm5mzsMV8JkE6ZKdX+/wYM6Hr+LicevLPs=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
-github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
-github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
+github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
+github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=